EPS unit
The steering assistance takes place parallel to the input shaft via the EPS unit. This configuration of the EPS unit is possible thanks to the low wheel contact forces at the front axle.
This configuration is more practical in terms of the installation area than an axially parallel configuration. The EPS unit consists of the following components:
- EPS control unit
- Servomotor with rotor position sensor
- Steering-torque sensor
The EPS control unit is a component of the electromechanical power steering. The EPS control unit is connected to the vehicle electrical system with 2 plug connections. The steering-torque sensor is integrated into the EPS unit.
Several characteristic curves for power assistance, active steering wheel return as well as damping characteristics are stored in the EPS control unit. The values calculated from the input variables added to each characteristic curve result in the necessary steering servo.
The EPS unit is supplied with power by the battery power distribution box, via terminal 30. The power distribution box of the Life module supplies the EPS control unit with power via terminal 15N. The most important input factor for the EPS is the vehicle speed.
| Item | Explanation |
|---|---|
| 1 | EPS unit with servomotor and EPS control unit |
| 2 | Plug connection 2-pin (voltage supply) |
| 3 | Plug connection to the vehicle electrical system, three-pin |
| 4 | Steering-torque sensor |
| 5 | Potential compensation line |
| 6 | Input shaft |