System for vehicle body roll control detecting and compensating for changes of loaded vehicle weight

For a vehicle comprising a body and a plurality of wheels upon which said vehicle runs, a vehicle roll control system, comprising:

• a plurality of actuator assemblies, one provided corresponding to each one of said vehicle wheels and resiliently suspending said one of said vehicle wheels from the vehicle body, each of said actuator assemblies being adapted to increase or decrease vehicle height at a location corresponding to its corresponding vehicle wheel as results of control signals being supplied thereto;
• a plurality of control means which are provided corresponding to said actuator assemblies and which serve to supply control signals to said actuator assemblies;
• a vehicle speed detecting means for sensing the road speed of the vehicle;
• a steering angle detecting means for sensing the steering angle of the vehicle;
• a vehicle body total weight detecting means for determining the total weight of said vehicle body;
• and:
• a means for computing and control, which:
• computes a predictive roll angle of the vehicle body based upon the vehicle speed sensed by said vehicle speed detecting means and the steering angle sensed by said steering angle detecting means;
• controls said plurality of actuator assemblies, via said plurality of control means, in accordance with said predictive roll angle, when the absolute value of said predictive roll angle is larger than a threshold roll angle value;
• and varies said threshold roll angle value according to the total weight of said vehicle body as detected by said vehicle body total weight detecting means, so as to decrease said threshold roll angle value along with increase of said total weight of said vehicle body.

For a vehicle comprising a body and a plurality of wheels upon which said vehicle runs, a vehicle roll control system, comprising:

• a plurality of actuator assemblies, one provided corresponding to each one of said vehicle wheels and resiliently suspending said one of said vehicle wheels from the vehicle body, each of said actuator assemblies being adapted to increase or decrease vehicle height at a location corresponding to its corresponding vehicle wheel as results of control signals being supplied thereto;
• a plurality of control means which are provided corresponding to said actuator assemblies and which serve to supply control signals to said actuator assemblies;
• a plurality of vehicle height detecting means which are provided corresponding to said vehicle wheels and which serve for sensing parameters representative of the heights of the vehicle body over said vehicle wheels;
• a vehicle speed detecting means for sensing the road speed of the vehicle;
• a steering angle detecting means for sensing the steering angle of the vehicle;
• a vehicle body total weight detecting means for determining the total weight of said vehicle body;
• and:
• a means for computing and control, which:
• computes vehicle height differences between the vehicle heights sensed by said vehicle height detecting means and reference vehicle heights;
• computes a predictive roll angle of the vehicle body based upon the vehicle speed sensed by said vehicle speed detecting means and the steering angle sensed by said steering angle detecting means;
• controls said plurality of actuator assemblies, via said plurality of control means, in accordance with said predictive roll angle, when the absolute value of said predictive roll angle is larger than a threshold roll angle value;
• controls said plurality of actuator assemblies, via said plurality of control means, in accordance with said vehicle height differences, so as to keep said vehicle height differences within determinate ranges, when the absolute value of said predictive roll angle is less than said threshold roll angle value;
• and varies said threshold roll angle value according to the total weight of said vehicle body as detected by said vehicle body total weight detecting means, so as to decrease said threshold roll angle value along with increase of said total weight of said vehicle body.