Method and circuit configuration for compensating for signal errors of a yaw velocity sensor

US5719790A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Frank Lohrenz · Regensburg, DE
• Frank Menten · Regensburg, DE
• Gregor Probst · Landshut, DE

Key dates

• Filing date: Jan 30, 1996
• Grant date: Feb 17, 1998
• Expiry date: Jan 30, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2250/062
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method and a circuit configuration for compensating for signal errors of a yaw velocity sensor used in regulating driving stability of a motor vehicle include ascertaining a driving state in which an offset of a yaw velocity sensor is unequivocally determinable from electrical signals of at least one of a steering wheel angle sensor, wheel speed sensors and a transverse acceleration sensor, ascertaining the offset from the signals of one of the sensors in the driving state, and calculating a yaw velocity from the electrical signals of at least one of the sensors. Driving states are ascertained at a beginning and at an end of a predetermined time interval in which the yaw velocities of the motor vehicle are unequivocally determinable and differ from one another, the yaw velocities are calculated and associated signal voltages of the yaw velocity sensor are fixed at those instants. A sensitivity is calculated from the calculated yaw velocities and the associated signal voltages of the yaw velocity sensor. Various values of the offset and sensitivity are associated with one another in pairs from a functional dependency of the offset and the sensitivity on the temperature and stored …