Control system for stabilizing the rolling of a vehicle
First Claim
1. A control system for stabilizing the rolling of the vehicle body, comprising:
- control elements operatively arranged between the wheels and the vehicle body to generate forces approximately in a vertical direction with respect to the vehicle body to cause a rolling moment at the vehicle body which counteracts rolling motions acting on the vehicle body on response to driving conditions; and
means for selectively actuating the control system only when threshold values of the vehicle lateral acceleration and of the vehicle steering-wheel turning angle are exceeded such that a magnitude of the rolling moment generated by the control elements, as a function of a first set of parameters comprising the approximately vertical wheel distances to the vehicle body, is at first substantially formed at the rear axle and, after actuation and during a transition period whose time length is determined as a function of a second set of parameters independently of the first set of parameters, the rolling moment distribution between the front-wheel and the rear-wheel axle is changed to a given fixed rolling moment distribution between the front-wheel axle and the rear-wheel axle at the end of the transition period.
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Abstract
A control system for stabilizing the rolling of a vehicle, having control elements arranged between vehicle wheel carriers or wheel suspension members and the vehicle body to generate forces approximately in a vertical direction. The control system is activated only when threshold values for the lateral acceleration of the vehicle and for the steering wheel turning angle are exceeded. When the control system is activated, the control elements generate a rolling moment at the vehicle body counteracting the rolling motions caused by driving conditions and at first completely, or for the most part, only at the rear wheel axle. In a transition period, which depends on vehicle parameters, the control system will then change the rolling moment distribution between the front wheel axle and the rear wheel axle to a given fixed rolling moment distribution.
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Citations
20 Claims
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1. A control system for stabilizing the rolling of the vehicle body, comprising:
- control elements operatively arranged between the wheels and the vehicle body to generate forces approximately in a vertical direction with respect to the vehicle body to cause a rolling moment at the vehicle body which counteracts rolling motions acting on the vehicle body on response to driving conditions; and
means for selectively actuating the control system only when threshold values of the vehicle lateral acceleration and of the vehicle steering-wheel turning angle are exceeded such that a magnitude of the rolling moment generated by the control elements, as a function of a first set of parameters comprising the approximately vertical wheel distances to the vehicle body, is at first substantially formed at the rear axle and, after actuation and during a transition period whose time length is determined as a function of a second set of parameters independently of the first set of parameters, the rolling moment distribution between the front-wheel and the rear-wheel axle is changed to a given fixed rolling moment distribution between the front-wheel axle and the rear-wheel axle at the end of the transition period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- control elements operatively arranged between the wheels and the vehicle body to generate forces approximately in a vertical direction with respect to the vehicle body to cause a rolling moment at the vehicle body which counteracts rolling motions acting on the vehicle body on response to driving conditions; and
Specification