MoDolph
Established Member
Does the auto hold use the "handbrake" or simply the motor to hold it in place? If it's the handbrake I would imagine there is an excessive delay in releasing it whereas the motor should be instant.
Most modern autohold systems use separate electric motors on the rear wheels to apply the brakes, as this is reliable and safe. Modern ‘handbrakes’ often also use these motors, it is becoming uncommon for there to be an actual physical cable. So they become one and the same but separate from the electric motor that powers the car.Does the auto hold use the "handbrake" or simply the motor to hold it in place? If it's the handbrake I would imagine there is an excessive delay in releasing it whereas the motor should be instant.
On the ZS we test drove it applied the physical brake when using autohold which resulted in a noticeable delay when setting off. When the leaf is doing a hill start it uses the drive motor to hold the car in place, this is how I would prefer the autohold to operate.Most modern autohold systems use separate electric motors on the rear wheels to apply the brakes, as this is reliable and safe. Modern ‘handbrakes’ often also use these motors, it is becoming uncommon for there to be an actual physical cable. So they become one and the same but separate from the electric motor that powers the car.
Understood. I don’t know how the MG4 does it, autohold was turned off when I did my test drive. We need an owner to tell us: does it move off immediately or is there a slight delay while the brakes release?On the ZS we test drove it applied the physical brake when using autohold which resulted in a noticeable delay when setting off. When the leaf is doing a hill start it uses the drive motor to hold the car in place, this is how I would prefer the autohold to operate.