BMW 3: Introduction
The function of the brake system of the G20 PHEV is to decelerate the vehicle
safely under stable
conditions. Vehicle deceleration is made up of the following elements:
- Conventional hydraulic braking
- Regenerative braking
Thanks to regenerative braking it is possible to convert the kinetic energy
of the vehicle into electrical
energy with the help of the electrical machine, and to therefore charge the
high-voltage battery unit.
The service brake of the G20 PHEV is based on that of a conventional G20. In
this chapter only the
hybrid-specific components and functions are described.
In comparison to the conventional G20, the following new or modified components
are used:
- Brake pedal travel sensor
- Brake vacuum pressure sensor
- Modified vacuum brake system
- Modified DSC unit
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System overview of hybrid brake system
Hydraulic braking
Signal path
Regenerative braking
High-voltage battery unit
Electric Motor Electronics (EME)
Electric motor
Drive train
Digital Moto
G20 PHEV, hydraulic braking
The brake booster is operated via the driver's foot operation, and the brake
actuation is determined by
means of the brake pedal angle sensor.
Depending on the brak
The regenerative braking makes possible brake energy regeneration. The
electrical machine works
here as an alternator and brakes the gears via automatic transmission -
propeller shaft - re
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The function does not have any separate display or operating elements. The
function is only available
in the HYBRID ECO PRO driving mode. The function cannot be deactivated.
Recuperation is displayed as usual in the instrument cluster below the
drive-ready state indicator
(CHARGE area).
Why can the current position not be displayed?
The vehicle is located in an unrecognized region,
is in a poor reception area, or the system
is currently determining the position.
Reception is usually best when you have an
unobstructed view of the sky.
Why does destination guidance not accept