Suspension: Description and Operation: Overview
Overview
Front wheel suspension
The front suspension is of the McPherson type.
Rear suspension
The rear suspension comprises a "Multi link rear axle".
Steering
The electrical power steering pump consists of:
- servo pump
- pump motor
- electrical power steering module (EPS).
Servo assistance is determined by the steering gear torsion valve together with the electrical power steering module (EPS).
The torsion valve determines:
- if servo assistance is required
- in which direction servo assistance should go
- how much of the available pump assistance should be used.
The electrical power steering module (EPS) determines the RPM of the pump using:
- the vehicle speed
- the steering wheel angle sensor.
The electric motor provides the pump with the power required to supply the correct hydraulic flow and pressure to the steering gear.
For further information about the electric power steering module (EPS), as well as other electrical components included in the electro-hydraulic power steering system, see Design and Function, electric power steering module (EPS).
The adaptive steering column allows a relatively gentle deformation process in the event of a collision (only applies to drivers wearing seat belts, USA/CDN).
Steering shaft
The steering shaft is divided into two parts. The upper part of the steering column is further divided to prevent intrusion into the passenger compartment in event of a collision.