Acura Automobiles: 2014 Acura RLX Sport Hybrid SH-AWD: Powertrain

Posted on 05. Dec, 2013 by in Acura Canada

2014 ACURA RLX: POWERTRAIN

The 2014 RLX Sport Hybrid’s all-new three-motor hybrid powertrain combines a appetite of a compulsory V-8 engine with 4-cylinder-like fuel potency and a performance-enhancing capabilities of torque-vectoring all-wheel drive.

The RLX Sport Hybrid shares it simple engine pattern with a two-wheel-drive RLX with P-AWS. The 3.5-liter, 310-horsepower, 24-valve direct-injected SOHC V-6 engine with i-VTEC® and VCM™ adds an idle-stop underline to serve maximize fuel efficiency, and revised cam timing to well-spoken engine restart after idle stop. Peak torque to a front wheels is rated during 273 lb.-ft. during 4,700 rpm (versus 272 lb.-ft. during 4,500 rpm in a RLX with P-AWS).

An all-new modernized 7-speed dual-clutch smoothness (DCT) is customary on a Sport Hybrid—a initial for Acura. Unlike a compulsory involuntary transmission, a DCT offers ultra-quick rigging changes and eliminates a need for a torque converter, that significantly improves efficiency. It can work in entirely involuntary mode, or can be shifted manually around steering wheel-mounted paddle shifters.

The RLX Sport Hybrid SH-AWD uses 3 electric motors: a singular 35-kilowatt (47 hp) engine that is integrated with a 7-speed Dual Clutch Transmission supplements a V-6 engine in pushing a front wheels, and a rear-mounted Twin Motor Unit (TMU) containing twin 27-kilowatt (36 hp) motors that boldly discharge electric-motor torque to a behind wheels. Both a front and behind motors constraint kinetic appetite during car deceleration and braking and modify it to electricity to supply a Intelligent Power Unit’s 72-cell, 1.3-kWh lithium-ion battery pack, located behind a behind seatback. Together, a 310-horsepower V-6 engine and 3 electric motors furnish a sum complement outlay of 377 horsepower and 377 lb.-ft. of torque—the many ever in a prolongation Acura.

The front engine is integrated with a 7-speed DCT and is connected to a driveshaft around a clutch. The engine accomplishes 3 tasks: (1) It supplements a V-6 engine in pushing a front wheels when additional appetite is required, such as in a flitting situation; (2) provides regenerative braking to a front wheels; (3) translates engine appetite to electricity to serve regenerative braking in recharging a lithium-ion batteries.

Acura’s mechanically-based Super Handling All-Wheel Drive (SH-AWD) done a entrance on a RL oppulance sedan in 2005, and has given been used on a operation of Acura models in several iterations. In a RLX Sport Hybrid, SH-AWD operates eccentric of a gasoline engine. Drawing appetite from a lithium-ion battery pack, a Twin Motor Unit’s twin electric motors broach torque directly to a behind wheels, thereby expelling a weight and appetite waste compared with a compulsory driveshaft and differential mechanism.

When cornering, a RLX Sport Hybrid delivers some-more torque to a outward behind wheel, most like involuntary SH-AWD, though with some-more accessible torque during low engine speeds. Sport Hybrid SH-AWD can also concurrently request stop torque to a inside behind circle during cornering to serve raise cornering control. In addition, given it doesn’t rest on engine torque, electric SH-AWD can emanate a incomparable torque disproportion between a left and right behind wheels, even during tiny stifle applications, during low engine speeds or even during deceleration (such as when lifting stifle mid-corner). This almost magnifies a certain doing advantages of SH-AWD opposite a most wider operation of pushing conditions.

POWERTRAIN COMPARISON

2014 RLX (P-AWS)
2014 RLX Sport Hybrid SH-AWD
Gasoline Engine type
Aluminum-alloy V-6
Aluminum-alloy V-6
Displacement, liters
3.5
3.5
Fuel injection
Direct
Direct
Valvetrain

Belt drive, SOHC,
i-VTEC® 24-valve with VCM

Belt drive, SOHC,
i-VTEC® 24-valve with VCM and idle stop

Gasoline Engine Horsepower @ rpm (SAE net)
310 @ 6500
310 @ 6500
Gasoline Engine Torque @ rpm (lb-ft) (SAE net)
272 @ 4500
273 @ 4700
Total Combined Hybrid System Horsepower
NA
377
Compression ratio
11.5:1
11.5:1
Redline
6800 rpm
6800 rpm
Transmission
6-speed involuntary smoothness with Sequential SportShift paddle shifters, Sport Mode, Grade Logic and Shift Hold Control
7-speed dual-clutch smoothness (DCT) with Sequential SportShift paddle shifters, involuntary Drive Mode, Grade Logic and Shift Hold Control
Drive type
FWD
SH-AWD
EPA Fuel Economy Rating1 (city / highway/ combined)
20/31/24
28/32/30
Recommended fuel2
Premium unleaded
91 octane
Premium unleaded
91 octane
CARB emissions rating
ULEV-2
LEV Ⅲ SULEV30
Tune-up interval3
No scheduled tune-ups compulsory for 100,000 +/- miles
No scheduled tune-ups compulsory for 100,000 +/- miles

Powertrain during a Glance

Engine

  • 3.5-liter, SOHC, V-6 engine produces 310 horsepower during 6,500 rpm and 273 lb.-ft. of torque during 4,700 rpm
  • i-VTEC® (intelligent Variable Valve Timing and Lift Electronic Control) for intake valves with VCM (Variable Cylinder Management)
  • Computer-controlled Direct Injection (DI) with multi-hole fuel injectors
  • 11.5:1 focus ratio
  • High-strength steel crankshaft
  • X-shaped magnesium intake manifold
  • Drive-by-Wire™ stifle system
  • Direct ignition system
  • Detonation/knock control system
  • Variable upsurge empty system
  • Maintenance Minder™ complement optimizes use intervals
  • 100,000 +/- miles tune-up interval

Emissions/Fuel Economy Ratings

  • High-flow, close-coupled next-generation precious-metal catalytic converters and underneath building catalytic converter
  • High ability 32-bit RISC processor emissions control territory
  • LEV III/SULEV30 emissions compliant
  • EPA 28/32/301 mpg (city/highway/combined) fuel economy ratings

Noise Vibration (NV)

  • 60-degree cylinder V-angle for well-spoken operation
  • Automatically tensioned, maintenance-free twisted belt appendage drive
  • Active Control engine Mount (ACM)
  • Active sound control

7-speed twin purchase transmission

  • Electronic Gear Selector provides entirely electronic push-button change control with Sport mode button
  • Steering circle mounted racing-inspired paddle shifters
  • Sport mode with remapped, some-more assertive involuntary change points and some-more conspicuous engine braking during deceleration
  • Advanced shift-hold control boundary adult shifts during energetic pushing
  • Grade Logic Control System reduces rigging “hunting” on high hills

The RLX Sport Hybrid’s pivotal hybrid components are laid out for limit wrapping efficiency. One electric engine is integrated with a 7-speed DCT transmission, while twin some-more electric motors are finished inside a Twin Motor Unit (TMU) positioned between a behind wheels. The Power Drive Unit (PDU) is located longitudinally, low in a car between a front seats, while a Intelligent Power control Unit (IPU) and a 72-cell lithium-ion battery container is placed immediately behind a behind seatback.

Engine Architecture
The RLX Sport Hybrid 3.5-liter VTEC® V-6 has a smooth-firing 60-degree V-angle and compress altogether dimensions. The V-6 has a die-cast lightweight aluminum amalgamate retard with cast-in-place iron cylinder liners. The initial ever focus of approach injection in an Acura car combines with i-VTEC and Variable Cylinder Management (VCM) to give a RLX a manly brew of appetite and fuel efficiency.

The aluminum-alloy 24-valve engine produces 310 horsepower during 6,500 and generates 273 lb.-ft. of torque during 4,700 rpm. Torque is considerably softened vs. RL in a revoke ranges, where a engine typically operates. Along with a increasing horsepower, a updated V-6 also contributes to increasing fuel efficiency, due in partial to inner attrition rebate features, including an oil-ring ion-plating treatment, and plateau honing. A new tumble-type intake pier pattern improves explosion efficiency.

Engine Block and Crankshaft
With a 60-degree V-angle, a V-6 engine is inherently well-spoken and has compress altogether measure that concede fit wrapping within a vehicle. The V-6 has a die-cast lightweight aluminum amalgamate retard with cast-in-place iron cylinder liners. Made with a centrifugal spin-casting process, a thin-wall liners are high in strength and low in porosity. The retard incorporates a deep-skirt pattern with 4 bolts per temperament top for firm crankshaft support and minimized sound and vibration. The 3.5L V-6 uses a high-strength steel crankshaft for smallest weight.

A new cooling control spacer positioned in a H2O coupler surrounding a cylinders helps to say unchanging doing temperature. Plateau honing of a cylinder backing serve lowers a attrition spin between a pistons and a cylinders by formulating an ultra-smooth surface. This two-stage machining routine uses twin harsh processes instead of a some-more compulsory singular honing process. Plateau honing also enhances a long-term wear characteristics of a engine.

Pistons/Connecting Rods
Designed with special “cavity-shaped” crowns, a pistons assistance say fast explosion and minister to stratified-charge combustion. Ion-plated piston rings assistance revoke attrition for incomparable doing efficiency. The focus ratio is 11.5:1. Heavy-duty steel joining rods are fake in one square and afterwards a crankshaft joining rods are “crack separated” to emanate a lighter and stronger rod with an optimally propitious temperament cap.

Cylinder Heads/ Valvetrain
Like other Acura V-6 powerplants, a RLX Sport Hybrid engine’s 4-valve cylinder heads are a single-overhead-camshaft design, with a cams driven by a crankshaft around an automatically tensioned toothed belt. Made of low-pressure cast, low-porosity aluminum, any cylinder conduct incorporates a new “tumble port” pattern that improves explosion potency by formulating a some-more comparable fuel-air mixture. An integrated empty plural expel into any cylinder conduct reduces tools count, saves weight, improves upsurge and optimizes a plcae of a close-coupled catalyst.

i-VTEC Valve Control System
The RLX Sport Hybrid V-6 engine combines Variable Cylinder Management (VCM) with Variable Valve Timing and Lift Electronic Control (VTEC), that changes a lift profile, timing and lift generation of a intake valves. A switching resource allows any cylinder to work with low-rpm valve lift and generation or high-rpm lift and duration. The behind cylinder bank’s valve rigging can also leave all intake and empty valves sealed to maximize fuel potency during cylinder deactivation.

The “intelligent” apportionment of a complement is a ability to change valve operation formed on a pushing conditions and engine rpm. At low rpm, a VTEC intake valve timing and lift are optimized (low lift, brief duration) for increasing torque, that allows a far-reaching operation of 3-cylinder operation. As engine rpm builds past 5,000 rpm, a VTEC complement transitions to a high-lift, long-duration intake cam form for aloft high-rpm engine power.

Variable Cylinder Management ™ (VCM™)
The RLX Sport Hybrid engine employs Acura’s Variable Cylinder Management (VCM) cylinder deactivation technology. The VTEC complement combines with Active Control engine Mounts (ACM) to concede a VCM complement to work with 3 cylinders in a far-reaching operation of situations to maximize fuel potency and revoke emissions. When incomparable appetite is needed, a complement switches seamlessly to 6-cylinder operation. With a clever appetite outlay of a Direct Injection RLX engine, a 4-cylinder doing mode (as used on a pier fuel injected 2013 RDX) is not needed.

During startup, assertive acceleration, or when climbing hills – any time high appetite outlay is compulsory – a engine operates on all 6 cylinders. During moderate-speed cruising and during low or assuage engine loads, a complement operates only a front bank of 3 cylinders.

The VCM complement can tailor a operative banishment of a engine to compare a pushing mandate from impulse to moment. Since a complement automatically closes both a intake and empty valves of a cylinders that are not used, pumping waste compared with intake and empty are separated and fuel potency gets a serve boost. The complement combines limit opening and limit fuel potency – twin characteristics that don’t typically coexist in compulsory engines.

VCM deactivates specific cylinders by regulating a i-VTEC (intelligent Variable Valve-Timing and Lift Electronic Control) complement to tighten a intake and empty valves while a Power Control Module (PCM) concurrently cuts fuel to those cylinders. The hint plugs continue to glow in dead cylinders to minimize retard heat detriment and forestall fouling prompted from deficient explosion during cylinder re-activation.

The complement is electronically controlled, and uses special integrated bobbin valves in a cylinder heads. Based on commands from a system’s electronic control unit, a bobbin valves selectively approach oil vigour to a rocker arms for specific cylinders. This oil vigour in spin drives synchronizing pistons that bond and undo a rocker arms.

The VCM complement monitors stifle position, car speed, engine speed, automatic-transmission rigging preference and other factors to establish a scold cylinder activation intrigue for a doing conditions. In addition, a complement determines either engine oil vigour is suitable for VCM switching and either catalytic-converter heat will sojourn in a correct range. Importantly, a expostulate by handle control is means to finely compare torques in 6-cylinder and 3-cylinder explosion modes, creation a transition between a twin probably unnoticeable.

Direct Injection System
Conventional engines regulating multi-port fuel injection brew fuel and atmosphere before they enter a explosion chamber. With approach injection, fuel is injected directly into any explosion chamber. This allows for softened explosion and altogether efficiency.

The RLX V-6 engine is a initial focus of approach injection for an Acura car in a United States. The complement facilities a compact, high-pressure, direct-injection siphon that allows both high fuel upsurge and tapping suppression, while non-static vigour control optimizes injector operation. A multi-hole injector delivers fuel directly into any cylinder (not to a intake port, as in compulsory pier fuel injection designs).

The multi-hole injectors can emanate a ideal stoichiometric fuel/air reduction in a cylinders for good emissions control. Theoretically, a stoichiometric reduction has only adequate atmosphere to totally bake a accessible fuel.

Based on a doing conditions, a direct-injection complement alters a duty for best performance. Upon cold engine startup, fuel is injected into a cylinders on a focus stroke. This creates a diseased stratified assign outcome that improves engine start-up and reduces empty emissions before normal doing heat is reached.

Once a engine is entirely comfortable for limit appetite and fuel efficiency, fuel is injected during a intake stroke. This helps emanate a some-more comparable fuel/air brew in a cylinder that is aided by a high-tumble intake pier design. This improves volumetric efficiency, and a cooling outcome of a incoming fuel improves anti-knock performance.

Active Control Engine Mounts and Active Sound Control
A new, some-more absolute 28-volt Active Control Engine Mount complement (ACM) is used to minimize a effects of engine quivering as a VCM complement switches cylinders on and off. The 28-volt ACM is a pivotal cause in a VCM’s extended operation of operation in a new RLX. Sensors warning a Electronic Control Unit (ECU) to approach ACM actuators positioned during a front and behind of a engine to cancel engine vibration. In a cabin of a RLX, an Active Sound Control complement serve reduces low magnitude sound relating to a duty of a VCM system. (See Interior territory for some-more information.)

Vibration Reduction Technology
Since a RLX Sport Hybrid’s gasoline engine can be tighten down during certain pushing conditions (idle stop), it incorporates measures to lessen engine quivering during restarts. Compared to a two-wheel-drive RLX, a RLX Sport Hybrid has singular intake cam profiles that tighten a intake valves later, effectively obscure a focus ratio during startup to revoke vibration. To serve revoke vibration, a electrically actuated hydraulic Active Control Mounts (see above) are synchronized with engine start-up. A dual-mass flywheel helps serve revoke engine quivering when a gasoline engine is in operation.

Drive-by-Wire Throttle System
The RLX doesn’t use a compulsory stifle cable, though instead has intelligent wiring that “connect” a stifle pedal to a stifle valve inside a throttle-body. The outcome is reduction underhood confusion and revoke weight, as good as quicker and some-more accurate stifle actuation. Plus, specifically involuntary “gain” between a stifle pedal and engine offers softened drivability and optimized engine response to fit specific pushing conditions.

Acura’s Drive-by-Wire stifle complement establishes a stream pushing conditions by monitoring stifle pedal position, stifle valve position, engine rpm and highway speed. This information is used to conclude a stifle control attraction that gives a RLX’s stifle pedal a predicted and manageable feel that meets motorist expectations. There are twin opposite stifle profiles accessible in a RLX. When a smoothness is in “D” (Drive) a drive-by-wire complement uses a normal profile. When a Sport mode is intent by dire a Sport symbol located nearby a change lever, a complement changes a stifle map to raise response feel.

Direct Ignition and Detonation/Knock Control
The RLX’s Power Control Module (PCM) monitors engine functions to establish a best ignition hint timing. An engine block-mounted acoustic detonation/knock sensor “listens” to a engine, and formed on this input, a PCM can retard a ignition timing to forestall potentially deleterious detonation. The 3.5L V-6 has an ignition curl territory for any cylinder that is positioned above any hint plug’s entrance bore.

Close-Coupled Catalysts and Variable Flow Exhaust System
The empty manifolds of a 3.5L V-6 are expel directly into a aluminum cylinder heads to revoke weight, diminution tools count, and emanate some-more underhood space. The outcome of this casting pattern is that a twin primary catalytic converters are positioned most closer to a explosion chambers. High-efficiency next-generation changed steel catalytic converters are mounted directly to a empty pier of any cylinder conduct to capacitate intensely fast converter “light-off” after a engine starts. A poignant weight assets is satisfied by expelling normal empty manifolds.
Downstream of a close-coupled catalytic converters, a hydroformed 2-into-1 gourmet siren carries empty gases to a delegate catalytic converter located underneath a newcomer cabin floorboard. This high-flow delegate catalytic converter has a vast estuary and opening to raise empty flow. To change a engine’s need for still operation during low rpm and aloft upsurge during high rpm, a RLX’s twin empty complement incorporates a non-static upsurge rate feature. Pressure-operated empty valves in any silencer are sealed in normal operation, shortening empty sound by as most as 8 dB. When a motorist final some-more opening from a RLX, rising empty gas vigour opens both valves. The additional empty upsurge ads 5 horsepower to a engine’s rise output.

Emissions Control
The 2014 RLX Sport Hybrid utilizes a aloft volume of changed metals in a under-floor matter to accommodate CARB LEV III SULEV 30 emissions standards.

A series of modernized technologies are factors in a emissions performance. The singular cylinder head-mounted close-coupled catalytic converters light off some-more fast after engine start up, and a 32-bit RISC microprocessor within a powertrain control procedure (PCM) boosts computing appetite to urge a pointing of hint and fuel delivery.

The RLX’s V-6 engine facilities Programmed Fuel Injection (PGM-FI) that ceaselessly adjusts a fuel smoothness to produce a best multiple of power, low fuel expenditure and low emissions. Multiple sensors constantly guard vicious engine doing parameters such as intake atmosphere temperature, ambient atmosphere pressure, stifle position, intake airflow volume, intake plural pressure, coolant temperature, exhaust-to-air ratios, as good as a position of a crankshaft and a camshafts.

To serve urge emissions compliance, a 3.5L V-6 creates use of an after-cat pattern empty gas recirculation (EGR) complement that allows cleaner, cooler EGR gas to be fed behind into a intake system. An EGR system, generally one that delivers a cleaner/cooler charge, reduces pumping detriment for softened fuel efficiency.

One-Touch Start System
To safeguard unchanging starting, a RLX has a one-touch start complement that maintains starter rendezvous until a engine starts. Should a motorist recover a Start symbol before a engine starts, a complement will start a vehicle. Simply lift a Start symbol (with a fob in a vehicle) and a engine will automatically start up.

Noise Vibration Control
With a 60-degree V-angle and compact, firm and lightweight die-cast aluminum cylinder retard assembly, a 3.5L V-6 powerplant is unusually well-spoken during operation. Other factors that assistance revoke engine sound and quivering are a firm forged-steel crankshaft, die-cast appendage mounts, and a unbending cast-aluminum oil vessel that reduces cylinder retard flex.

Idle Stop Feature
Idle stop stops cylinder explosion and cylinder activation, expelling fuel use when a car is stopped, such as during trade light or in complicated trade conditions. The engine is restarted by a 35-kilowatt front motor-generator regulating appetite from a lithium ion hybrid battery pack. Unlike some competing systems, a engine restart is intensely well-spoken and refined, most undetectable to a vehicle’s occupants.

7-Speed Dual-Clutch Transmission (DCT)
To maximize opening and fuel efficiency, a RLX Sport Hybrid has a customary 7-Speed Dual-Clutch Transmission (DCT). In a 7-speed DCT, one purchase controls a peculiar gears while a other purchase controls a even gears. This arrangement allows gear
changes with a most smaller stop in appetite to a wheels, ensuing in millisecond-quick shifts. Compared to a compulsory primer transmission, a operation of a clutches and changeable mechanisms are electronically controlled, expelling a need for a purchase pedal or change lever. Compared to a compulsory automatic, a torque converter and a involuntary inefficiencies are also eliminated. The DCT smoothness in a RLX Sport Hybrid also facilities a 17-percent wider ratio operation than a 6-speed involuntary smoothness in a RLX with P-AWS.

Electronic Gear Selector
In a RLX Sport Hybrid, a compulsory console-mounted change lift is transposed with an all-new Electronic Gear Selector entirely electronic, shift-by-wire rigging selector. Park, Neutral and Drive are comparison with a lift of a button. Reverse is comparison by pulling behind a dedicated switch. Indicator lights nearby a buttons prove a mode selected. As an combined reserve feature, if a car is brought to a stop in Drive, a complement will automatically name Park if a driver’s seatbelt is unbuckled and a driver’s doorway is opened.

Transmission Modes
When in Drive mode, a 7-speed dual-clutch smoothness can be tranquil steering wheel-mounted paddle shifters. While roving adult or down hills, Grade Logic Control alters a transmission’s change report to revoke change magnitude and urge speed control. A change map in a smoothness mechanism ceaselessly measures stifle position, car speed and acceleration/deceleration, and afterwards determines when a car is on a hill. The change report is afterwards practiced to reason a smoothness in revoke gears to boost climbing appetite or to yield engine braking when roving downhill.

Shift Hold Control keeps a smoothness in a stream (lower) rigging ratio when assertive pushing is detected, as in a box of decelerating during a dilemma entry. Shift Hold Control leaves a framework composed by additional changeable and ensures that appetite will be immediately accessible (without a downshift) during a dilemma exit.

The RLX Sport Hybrid facilities Sport and Normal modes. A selector symbol located on a core console allows a motorist to toggle between a twin doing modes. Normal mode is directed during altogether appetite efficiency. Sport mode, by contrast, puts incomparable importance on a pushing experience, delivering a some-more manageable and approach feel. Sport mode offers some-more assertive and sporty change mapping, engine rpm “blips” on downshifts, while VCM and idle stop functions are cancelled. All of a smoothness proof systems work together to automatically change change timing formed on pushing conditions.

Temporary Manual Operation in “Drive”
Whether in Drive or Sport mode, special smoothness proof programming allows a use of a steering-wheel-mounted paddle shifters. When a motorist operates a steering wheel-mounted paddle shifters while in Drive, a smoothness responds to a driver’s change authority and afterwards earnings to a normal entirely involuntary mode if serve paddle change inputs are not done within a given time. This special proof creates it easy for a motorist to authority a discerning downshift but withdrawal a comfort of Drive mode. When in Sport mode, use of a paddle shifters puts a smoothness into full primer mode that stays until another mode of operation is selected.

Manual Mode
By dire a “Sport” symbol located nearby a rigging selector button, Sport mode is engaged. This mode offers involuntary operation with some-more assertive change mapping. A lift on a racing-inspired paddle shifters (mounted on a steering wheel) places a smoothness in entirely primer mode. A digital arrangement in a instrument cluster indicates that rigging a smoothness is in. The complement reverts to normal entirely involuntary mode if serve paddle change inputs are not done within a given time.

Sport Hybrid Super Handling All-Wheel Drive (SH-AWD)
The RLX Sport Hybrid is a initial prolongation car to occupy an electric chronicle of Super Handling All-Wheel Drive (SH-AWD). Previous involuntary versions of SH-AWD had a ability to change a volume of appetite sent to a behind axle, and to also change behind appetite placement between a left and right behind wheels around a longitudinally mounted expostulate missile and behind differential with twin electronically tranquil purchase packs.

In a RLX Sport Hybrid, a driveshaft and behind differential of a compulsory all-wheel expostulate complement is eliminated, transposed by twin 27-kilowatt (36 hp) electric motors that exclusively expostulate a left and right behind wheels. Each engine can also constraint regenerative braking appetite and request disastrous (regenerative braking) torque to serve raise cornering capability.

Independent placement of torque to all 4 wheels is a pivotal underline of SH-AWD and a ability to raise both energetic doing and all-weather traction. When cornering, some-more certain (drive) torque is practical to a outward behind wheel, while disastrous (regenerative braking) torque can be practical to a inside behind wheel. This torque differential creates a bend moment, producing crook turn-in, some-more linear cornering, extended traceability and softened steering response with reduced understeer tendencies. In addition, given a complement doesn’t rest on a gasoline engine for torque, electric SH-AWD can emanate a incomparable torque disproportion between a left and right behind wheels, even during tiny stifle applications, during low engine speeds, or even during deceleration (such as lifting stifle mid-corner). This almost magnifies a certain doing advantages of SH-AWD opposite a most wider operation of pushing conditions.

Power Drive Unit (PDU)
The Power Drive Unit, finished in a core of a car underneath a core console, dictates a appetite government plan of a Sport Hybrid SH-AWD system, including engine appetite and battery recharge.

Intelligent Power Unit (IPU)
The Intelligent Power Unit is positioned above a Twin Motor Unit, behind a behind seatback. The IPU contains a hybrid system’s lithium-ion battery, 12-volt DC/DC converter, connection board, and Electronic Control Units (ECU) for a motors and a battery. The IPU is air-cooled around an integrated fan territory that draws atmosphere from inside a car cabin around an intake channel located underneath a behind seats.

1.3-kWh Lithium-Ion Battery
The RLX Sport Hybrid’s modernized 72-cell lithium-ion battery has 29 percent incomparable appetite firmness and 5 percent incomparable appetite firmness compared to a lithium-ion battery in a ILX hybrid.

Front Electric Motor
A singular 35-kilowatt (47 hp) electric engine is integrated with a 7-speed DCT. The motor’s doing heat is optimized by a temperature-controlled upsurge of Automatic Transmission Fluid (ATF) by a engine housing. By firmly determining a engine temperature, a motor’s torque outlay (both expostulate and regeneration) can be softened adult to 100 percent.

Twin Motor Unit (TMU)
The RLX Sport Hybrid’s Twin Motor Unit (TMU) is located in between a behind wheels, where a differential on an all-wheel-drive car is typically mounted. Inside a die-cast aluminum housing are twin electric motors positioned back-to-back. Each 27-kilowatt (36-horsepower) engine powers a singular behind circle and can also request disastrous torque to a same wheel. A purchase allows any engine to be decoupled from a circle in certain doing situations to urge efficiency.

Electrically Powered Air Conditioning Compressor
Since a RLX Sport Hybrid engine has an idle-stop feature, it is versed with an electrically powered atmosphere conditioning compressor. This allows continual atmosphere conditioning operation even when a gasoline engine is tighten off.

Hybrid System Safety
To maximize newcomer safety, a hybrid complement components are positioned in well-protected areas of a vehicle. In a eventuality of a collision that triggers a airbags, an involuntary high-voltage circuit miscarry in a Intelligent Power Unit cuts appetite to a hybrid system.

100,000 Mile Tune-up Intervals
The RLX’s 3.5L V-6 requires no scheduled upkeep for 100,000+/- miles or more, other than periodic inspections and normal liquid and filter replacements. The initial tune-up includes H2O siphon inspection, valve adjustment, deputy of a camshaft timing belt, and a designation of new hint plugs.

Maintenance Minder™ System
To discharge nonessential use stops while ensuring that a car is scrupulously maintained, a RLX Sport Hybrid has a Maintenance Minder™ complement that ceaselessly monitors a vehicle’s doing condition. When upkeep is required, a motorist is alerted around a summary on a Multi-Information Display (MID).

The Maintenance Minder™ complement monitors doing conditions such as oil and coolant heat along with engine speed to establish a correct use intervals. Depending on doing conditions, oil change intervals can be extended to a limit of 10,000 miles, potentially provident a owners substantial expenditures and nuisance over a life of a vehicle. The owner-resettable complement monitors all normal use tools and systems, including oil and filter, tire rotation, air-cleaner, involuntary smoothness fluid, hint plugs, timing belt, coolant and more. To equivocate motorist daze while a car is being operated, upkeep alerts are presented on a MID when a ignition is initial incited on.

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