Back to results
US 2002/0172256 A1Published application
Method and device for detecting the temperature of a hydraulic braking system in a motor vehicle
OwnerJingsheng Yuinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerJingsheng Yuinventor
Estimating the term…
A method of determining the temperature of a hydraulic brake system of a motor vehicle is described, in which the temperature of the hydraulic pump is determined with the help of a model and by measuring the motor voltage (Um) and the power supply voltage after turning it on. The model has a state observer with which a temperature-dependent estimator is formed for the estimated temperature of the pump motor or the hydraulic pump. The estimator is determined at a defined time after turning on the power supply voltage, and the temperature of the hydraulic pump (1) is determined with the help of an empirical comparison table or curve. The estimated temperature or the change in temperature is used to correct or improve on the brake pressure control of the hydraulic brake system, in particular in the case of an anti-skid system (ABS) and/or an anti-spin control (ASC).
A method of determining the temperature of a hydraulic brake system of a motor vehicle, an electric motor-driven hydraulic pump of the brake system being turned on and off for a period of time, and the temperature of the pump motor (1) being derived from the characteristic of the motor voltage (Um),
The method according to one of the preceding claims,
The method according to one of the preceding claims,
A device for carrying out the method according to one of the preceding claims, wherein a brake system of a motor vehicle having an anti-skid system (ABS) or an anti-spin control (ASC) has a program with which the temperature of the pump motor (1) of the hydraulic system can be estimated.
Dependencies are inferred from the claim text.