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Listen to the one two shift and watch the passenger's head at the start.
Can anyone confirm the NSX and the RLX-SH has the same transmission motor, TMU and battery? The spec sheets state the same HP, TQ and capacities for each.
Very different setups. The RLX has a 7-speed DCT. The NSX has a different layout and 9-speed DCT, plus the 75-degree V6 block, with Turbochargers. Hybrid components kind of like the RLX, but also set up differently.
Obviously the trans and engine are different with a different layout, but all of the electric drive train have the same specs. Both the Accord and RLX have a 1.3 kWh battery pack, but couldn't confirm the capacity on the NSX.
3-MOTOR SYSTEMRLX P-AWSRLX Sport Hybrid SH-AWD Front Motor Horsepower @ rpm NA 47 @ 3000 Front Motor Torque (lb-ft @ rpm) NA 109 @ 500-2000 Dual Rear Motors Horsepower @ rpm NA (36 + 36) @ 4000 Dual Rear Motors Torque (lb-ft @ rpm) NA (54 + 54) @ 0-2000 System Combined Horsepower NA 377 System Combined Torque (lb-ft) NA 341 Battery Type NA Lithium-Ion (Li-Ion)
NSX:
FRONT TWIN MOTOR UNIT (TMU) Type Twin traction motor/generator Layout Independent, twin motors packaged back-to-back with a single clutch, gear-linked system Horsepower @ rpm 36 + 36 @ 4000 Torque @ rpm 54 +54 lb.-ft. @ 0-2000
REAR DIRECT DRIVE MOTOR Type Water-cooled motor/generator Layout Direct drive situated between engine & transmission; Crankshaft output shaft-attached permanent magnet rotor & in-engine body- copper windings Horsepower @ rpm 47 @ 3000 Torque @ rpm) 109 lb.-ft. @ 500-2000
Last edited by pcloadletter; 02-20-2016 at 08:24 PM.
It looks like it may actually be the same hardware...makes sense if the NSX tech is supposed to trickle down.
In fact, it looks like they kinda reversed the 3-motor units....as it makes sense with the drivetrain layout between the RLX and the NSX.
NSX: 1 unit with the motor in the back
RLX: 1 unit with the motor in the front
In both cars the specs are 47hp/3000rpm and 109lb-ft/500-2000rpm
NSX: 2 units in the front helping out the front wheels
RLX: 2 units in the back helping out the rear wheels (wiki says rear wheels are only powered electrically?!)
In both cars the specs are 36+36hp/4000rpm and 54+54 lb-ft/0-2000rpm
I screenshotted the spec table so people can more easily visualize them:
NSX specs:
RLX specs:
The system complexity/software will obviously be much more advanced in the NSX the RLX. But it's not a stretch of the imagination to see Honda putting the hardware into the RLX as a trickle down kind of thing. Since RLX is their flagship luxury sedan.
Not sure what the difference in the SH-AWD software and how advanced the torque vectoring is in the RLX....this is where the most interesting/difficult question arise. And if Acura can use that as marketing material for the RLX.
Edit: it does look like the Sport Hybrid SH-AWD exclusively reserves the rear wheels to be powered/controlled by the twin electric motor units:
RLX Sport Hybrid has transverse front-drive powertrain with electric motor and DCT, with motor electronics (Power Drive Unit) in what would be transmission tunnel of non-hybrid.
It looks like it may actually be the same hardware...makes sense if the NSX tech is supposed to trickle down.
In fact, it looks like they kinda reversed the 3-motor units....as it makes sense with the drivetrain layout between the RLX and the NSX.
NSX: 1 unit with the motor in the back
RLX: 1 unit with the motor in the front
In both cars the specs are 47hp/3000rpm and 109lb-ft/500-2000rpm
NSX: 2 units in the front helping out the front wheels
RLX: 2 units in the back helping out the rear wheels (wiki says rear wheels are only powered electrically?!)
In both cars the specs are 36+36hp/4000rpm and 54+54 lb-ft/0-2000rpm
I screenshotted the spec table so people can more easily visualize them:
NSX specs:
RLX specs:
The system complexity/software will obviously be much more advanced in the NSX the RLX. But it's not a stretch of the imagination to see Honda putting the hardware into the RLX as a trickle down kind of thing. Since RLX is their flagship luxury sedan.
Not sure what the difference in the SH-AWD software and how advanced the torque vectoring is in the RLX....this is where the most interesting/difficult question arise. And if Acura can use that as marketing material for the RLX.
The EV systems in the NSX were beta tested in the RLX-Sport Hybrid. Here is a post I made on another thread that should be helpful:
We were visiting with a couple from Boston yesterday who are Boeing engineers (one electrical and the other mechanical), both with PHDs from MIT, and of course the topic of the Sport Hybrid came into the conversation. After a brisk test drive, they were amped up to find out more about the car. I told them of our struggles to figure out what the real power numbers are for this car because of the different hp and tq delivery from all 4 engines propelling it. We dug into the technical information and I shared with them my attempt to dyno the car, the performance data collected and then asked them if they could calculate what the wheel hp and tq might be based on certain assumptions. One of them (husband) called a friend of his that is an engineer at Honda to see if he could help figure out this mystery. After a bit of technical talk I did not understand, here is what they came up with:
ICE motor (alone) 236 ft/lbs tq or more from 2,000 rpm to 6,500 rpm with a peak of 249 ft/lbs tq at 4,700 rpm @ the wheels (9.12% drag from the DCT transmission which is less than typical because they say the transmission is particularly efficient)
(The estimated drive train loss for the EV motors are 3.51% for this analysis)
EV motor (front) 105 ft/lbs tq from 0 to 3,000 rpm (82 ft/lbs tq @ 6,000 rpm) @ the wheels
EV motors (rear) 104 ft/lbs tq from 0 to 4,000 rpm (79 ft/lbs tq @ 6,000 rpm) until 78 mph @ the wheels
Combined ICE/EV motors for speeds up to 78 mph (at the wheels):
@1,000 rpm – 384 ft/lbs tq & 228 hp
@2,000 rpm – 445 ft/lbs tq & 251 hp
@3,000 rpm – 436 ft/lbs tq & 280 hp
@4,000 rpm – 430 ft/lbs tq & 305 hp
@5,000 rpm – 426 ft/lbs tq & 330 hp
@6,000 rpm – 421 ft/lbs tq & 351 hp
@6,500 rpm – 415 ft/lbs tq & 357 hp
Combined ICE/EV motors for speeds 79-135 mph (at the wheels):
@2,300 rpm – 341 ft/lbs tq & 182 hp
@3,000 rpm – 332 ft/lbs tq & 211 hp
@4,000 rpm – 326 ft/lbs tq & 236 hp
@5,000 rpm – 322 ft/lbs tq & 261 hp
@6,000 rpm – 317 ft/lbs tq & 282 hp
@6,500 rpm – 311 ft/lbs tq & 288 hp
02-20-2016, 06:51 PM
