Drive slip regulating system

US5366282A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Johannes Schmitt · Markgröningen, DE
• Peter Rupp · Waiblingen, DE

Key dates

• Filing date: Aug 19, 1992
• Grant date: Nov 22, 1994
• Expiry date: Aug 19, 2012

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2270/206
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Engine speed is measured at successive moments and the gradient DN.sub.mot of the engine speed is determined based on successively measured engine speeds. Speeds of the driven wheels are measured and used to generate wheel speed signals, which in turn are used to control slippage of the driven wheels. The wheel speed signals are subject to a rise limitation dependent on the gradient DN.sub.mot of the engine speed. In a preferred embodiment the rise limitation is active when the vehicle is in first gear, the gradient DN.sub.mot is positive, VABS (n) is greater than or equal to VASR(n-1) , and VABS(n) is greater than or equal to VASR(n-1)+DN.sub.mot /K, where VABS(n) is a wheel speed signal generated by the ABS at moment n and VASR(n-1) is the wheel speed signal generated by the ASR in the previous moment.