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Setpoint values and signal path of pressure sensors

The signal for evaluation of hydraulic pressure depends on the pressure. The measuring range of approx. 0.5 - 4.5 Volts\ncorresponds to a hydraulic pressure of 0 bar to 200 bar.

Fig 1: Pressure Sensors On Front And Rear Axle Characteristic Curve
G09873104Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Signal voltage
2 Characteristic curve for pressure sensors on front axle and rear axle
3 Hydraulic pressure

Observe the following setpoint values for the components on the valve block:

Variable Value
Supply voltage for pressure sensors and shift-position sensor 5 V
Pressure control valves, preliminary current applied 0.35 A
Response time of direction valve approx. 30 ms
Maximum stabilization torque at the swivel motor (rear axle) approx. 800 Nm
Delivery rate of tandem pump with suction throttle valve 5.2 to 9 l/min 3.0 l/min
Temperature range -40 to 140 deg C