Mates,

any MHEV 1.5 out there faces similar issue where the brake pedal soften/sinks whenever speed reached 30kmph down to 0? Braking is fine, bite is good, just odd to have this pedal sinking when slowing to a stop. Doesn’t matter coasting or any drive mode profile.

 

hope to get some light on this one. 1200km done only.

I test drove an mhev and brake pedal definitely felt a little weird, but I assumed it was normal that it does some voodoo to regenerate. 

I drove an E-TEC for about 8500 miles during the spring/summer. I never got to work out what the regen-cum-energy recovery was doing when decelerating and under braking. Sometimes the brakes felt ‘normal’ whilst at others the car seemed to decelerate more than I expected given my brake pedal pressure. Then again, at times the pedal felt a bit softer than I’d expect whilst braking was fine.

 

This car was also the first car with a DSG ‘box that I had driven so some of my learning about decelerating the car was to do with the engine braking in a DSG, along with the e-Tec regen braking. Having said, I was always felt in control and I could control the decelration; its just the car worked differently to a normal internal combustion engine and a manual ‘box.

 

The brake pedal also lowers itself when the speed limiter kicks in and brakes the car; I wasn’t expecting that, and its the same on my own manual ‘box car. Seems weird that the pedal isn’t where I expect it to be!

remember that the amount of regenerative braking varies on the battery state of charge. If you have a full battery you  get less braking as there is less current that can be pushed into it.

 

John

The ACC on the VRS 245 also sinks the pedal as it brakes, really weird the first time it did it.