Regeneration reduced by last software update

[Esparza]

Im used to work with vehicle controllers and we set the amount of regen by % of max motor torque.

Power is equal to torque (Nm)*angular velocity (rad/seg). For having a fixed deceleration you need a fixed torque (lets take out looses). So the power for applying 100Nm of regen torque at 80 kmh will twice the torque at 40 kmh, exactly the same that happens when the motor is moving the car and not stoping it. When we hit hard the throttle we have lot of torque the first second, but only few Amps (few kW) are taken from the battery.

Regards

 

[markogts]

Hi,

the 1 m/s^2 limit is a type approval rule. Any braking device that can cause higher deceleration than 1 m/s^2 must switchon the brake lights. (Of course, 1 m/s^2 is considered on a flat road with nominal weight - downhill it may well be zero "kinematic" deceleration, but still a braking effect). That's why you can access to further deceleration by hitting lightly the brake pedal. It's just that Mitsu engineers are forcing us to light the stop lights

 

[anko]

Never heard of this rule, but it totally makes sense ...

 

[markogts]

Found it:

5.2.22.4 :

5.2.22.4. Electric regenerative braking systems as defined in paragraph 2.17 of this Regulation, which produce a retarding force upon release of the accelerator control, shall generate the signal mentioned above according to the following provisions:
Vehicle decelerations Signal generation
≤ 0,7 m/s2 The signal shall not be generated
> 0,7 m/s2 and ≤ 1,3 m/s2 The signal may be generated
> 1,3 m/s2 The signal shall be generated

http://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:42015X1222(01)&from=IT

 

[jaapv]

Ah- won't be valid for the UK any more.

 

[Dusz]

Well there has to be some benefit. :mrgreen:
I gather there is a possibility of NL also having a referendum.

 

[jaapv]

Well, seeing that those are only advisory and that the "advice" was not taken in the other referendum we had on such a subject, not many are taking an interest.