Process for ensuring a neutral vehicle handling during cornering and a simultaneous load change
First Claim
1. A process for operating a vehicle system having at least one driven axle, an axle differential gear assigned to the one driven axle, wheel brakes for the selective deceleration of an individual wheel, a corner recognition device, and a coasting operation recognition device in order to ensure a neutral vehicle handling during cornering and a simultaneous load change, the process comprising the steps of:
- recognizing vehicle cornering via the corner recognition device;
recognizing a coasting operation via the coasting operation recognition device;
generating a coasting operation signal corresponding to an intensity of the coasting operation recognized by the coasting operation recognition device;
braking a wheel of the driven axle during cornering at least as a function of the coasting operation signal in order to generate a counter-yawing moment; and
compensating a yawing moment caused by the cornering during the coasting operation via said counter-yawing moment generated by the braking of the wheel of the driven axle.
1 Assignment
0 Petitions
Accused Products
Abstract
A process for ensuring a neutral vehicle handling during cornering and a simultaneous load change is provided by the operation of a vehicle system having at least one driven axle, an axle differential gear, wheel brakes for the selective deceleration of an individual wheel, a device for recognizing a cornering and a device for recognizing a coasting operation and for generating a signal corresponding to the intensity of the coasting operation. The problem of rear-wheel driven and front-wheel driven vehicles is the vehicle handling during cornering in the coasting operation. As a result, depending on the method of operation, an oversteering or understeering of the vehicle is caused. The process avoids these problems in that, during a cornering, a wheel of the driven axle is decelerated at least as a function of the coasting operation signal such that the moment generated thereby, such as a counter-yawing moment, compensates the yawing moment caused by the cornering during the coasting operation.
18 Citations
36 Claims
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1. A process for operating a vehicle system having at least one driven axle, an axle differential gear assigned to the one driven axle, wheel brakes for the selective deceleration of an individual wheel, a corner recognition device, and a coasting operation recognition device in order to ensure a neutral vehicle handling during cornering and a simultaneous load change, the process comprising the steps of:
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recognizing vehicle cornering via the corner recognition device; recognizing a coasting operation via the coasting operation recognition device; generating a coasting operation signal corresponding to an intensity of the coasting operation recognized by the coasting operation recognition device; braking a wheel of the driven axle during cornering at least as a function of the coasting operation signal in order to generate a counter-yawing moment; and compensating a yawing moment caused by the cornering during the coasting operation via said counter-yawing moment generated by the braking of the wheel of the driven axle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification