Cornering
As the vehicle enters a bend, the signals from the lateral acceleration sensor in the ICM are sent to the VDM control unit. The control unit then sends a pulse-width modulated (PWM) signal to the pressure valves for the front and rear-suspension hydraulic motors and simultaneously stops restriction of pump intake by switching off the power to the intake restrictor valve. The greater the lateral acceleration, the higher is the PWM signal current for the pressure valves. The stronger the current supplied to the valve, the more the valve closes and the higher the pressure which builds up in the anti-roll bars.
The pressures at the anti-roll bars are detected by pressure sensors (10, 11) and signalled to the control unit. The direction valve (9) is activated by the control unit to create a pressure build-up which corresponds to the progression of the bend (left or right-hand bend). A sensor (8) detects the switching position of the direction valve.
Scheme 127
| Index | Explanation |
|---|---|
| 1 | Front hydraulic motor (SMV) |
| 2 | Rear hydraulic motor (SMH) |
| 3 | Front-suspension hydraulic circuit 1 (V1) |
| 4 | Front-suspension hydraulic circuit 2 (V2) |
| 5 | Rear-suspension hydraulic circuit 1 (V1) |
| 6 | Rear-suspension hydraulic circuit 1 (V1) |
| 7 | Failsafe valve (FS) |
| 8 | Switch-position detector (SSE) |
| 9 | Directional control valve (RV) |
| 10 | Rear-suspension pressure sensor (DSH) |
| 11 | Front-suspension pressure sensor (DSV) |
| 12 | Front-suspension pressure valve (PVV) |
| 13 | Rear-suspension pressure valve (PVH) |
| 14 | Tandem pump (P) |
| 15 | Fluid reservoir (HB) |
| 16 | Fluid level sensor |
INDEX REFERENCE CHART