Apparatus for speed limitation of engines and/or for velocity limitation of engine-driven motor vehicles

US6363910B1 · kind B1 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Thomas Kreischer · Waiblingen, DE
• Hartmut Weckenmann · Stuttgart, DE

Key dates

• Filing date: Apr 10, 2000
• Grant date: Apr 2, 2002
• Expiry date: Apr 10, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2710/0666
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Engine speed and/or vehicle velocity limitation apparatus of engine-driven motor vehicles, wherein a controller defines, as a function of the difference between an actual speed value or actual velocity value as controlled variable, on the one hand, and a speed limit value or velocity limit value or a speed limit function or velocity limit function, on the other hand, a torque setpoint for the engine of the motor vehicle as the manipulated variable. As a result, the combustion processes occur at the stoichiometric ratio even during the limiting operation, and the elimination of torque surges results in a considerable increase in drivability for the driver.