BMW 3: System overview
![System overview](images/books/3259/index.98.png)
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 Motor Electronics (DME)
- Wheel brakes
- Dynamic Stability Control (DSC)
- Brake pedal with brake pedal angle sensor and brake booster
- Accelerator pedal module
- Rectified high-voltage (DC) for storing in the high-voltage battery unit
- Electrical energy generated by the electrical machine (AC voltage)
- Bus message "Accelerator pedal angle" from the DME to the EME (energy
recovery in coasting overrun mode)
- Bus message "Braking torque setpoint" from the DSC to the EME
- Hydraulic pressure from the DSC to the wheel brakes
- Hydraulic pressure from the brake booster to the DSC
- Electrical signal "Brake pedal angle" from the brake pedal angle sensor
to the
DSC
- Operation of the brake pedal
- Electrical signal "Accelerator pedal angle" from accelerator pedal
module to
the DME (energy recovery in coasting overrun mode)
- Releasing the accelerator pedal
READ NEXT:
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
Regenerative braking with help of the drivetrain only effects the rear axle.
The brake force on the rear
axle must not exceed a specific value in proportion to that on the front axle.
This would oth
SEE MORE:
Concept
At blind driveways or when driving out of diagonal
parking spaces, approaching cross traffic is
detected sooner by the system than is possible
from the driver's seat.
General information
Two radar sensors in the rear bumper monitor
the area behind the vehicle.
The system indicates approach
Concept
The integrated Universal Remote Control in the
interior mirror can operate up to 3 functions of
remote-controlled systems such as garage door
drives, barriers, or lighting systems.
General information
The Integrated Universal Remote Control replaces
up to 3 different hand-held transmitters.