Abstract:
A method of controlling a road vehicle (1) having a number of wheels (2, 3); a frame (5) housing a passenger compartment (6); and a number of suspensions (8) suspending the frame (5) from respective wheels (2, 3), and expandible or contractable to adjust the height of the frame (5) with respect to the ground; the method including the steps of : determining a collision; and raising the frame (5) with respect to the ground by expanding at least some of the suspensions (8) on determining a collision.
Abstract:
A multiple parameter control system for a vehicle includes sensors to measure the control parameter shifts in relation to the vehicle, a controller to determine outputs, a dynamically adjustable vehicle system with controllable functions, and a power supply. The sensors measure the control parameter shifts and create representative input signals that are sent to the controller. The controller determines the appropriate outputs in response to the relative control parameter shift input signals received. The dynamically adjustable vehicle system with controllable functions receives the controller output and performs a dynamic control function adjustment to improve a vehicle ride characteristic.
Abstract:
A system and method for vehicle mobility traction/ride control. The system includes a mode controller configured to output control signals to a variety of vehicle control subsystems in response to operator mode selection input.
Abstract:
The absolute roll angle of a vehicle body (16) is estimated by blending two preliminary roll angle estimates based on their frequency (48) so that the blended estimate continuously favors the more accurate of the preliminary roll angle estimates. A first preliminary roll angle estimate based on the measured roll rate (22) is improved by initially compensating the roll rate signal for bias error using roll rate estimates inferred from other measured parameters (44). And a second preliminary roll angle estimate is determined based on the kinematic relationship among roll angle, lateral acceleration, yaw rate and vehicle speed (46). The blended estimate of roll angle utilizes a blending coefficient that varies with the frequency of the preliminary roll angle signals, and a blending factor used in the blending coefficient is set to different values depending whether the vehicle (10) is in a steady-state or transient condition (48).
Abstract:
A control system for an automotive vehicle having a vehicle body has a roll angular rate sensor generating a roll angular rate signal corresponding to a roll angular motion of the vehicle body. A controller is coupled to roll rate sensor and a plurality of sensors. The controller generates a linear road bank angle (88), first reference bank angle and a relative roll angle (90) in response to the roll angle generator and the plurality of sensor signals. The controller generates a second reference bank angle in response to linear bank angle and the first reference bank angle and a bank angle adjustment factor. The bank angle adjustment is a function of a relative roll angle estimate. The controller controls the safety system (112) in response to the second reference bank angle estimate.
Abstract:
The absolute roll angle of a vehicle body (16) is estimated by blending two preliminary roll angle estimates (54) based on their frequency so that the blended estimate continuously favors the more accurate of the preliminary roll angle estimates. A first preliminary roll angle estimate based on the measured roll rate (22) is improved by initially compensating the measured roll rate for bias error (44) using roll rate estimates inferred from other measured parameters. And a second preliminary roll angle estimate is determined according to the sum of the road bank angle and the relative roll angle (46-52). The blended estimate is used to estimate the actual lateral acceleration (56), the lateral velocity and side-slip angle (58) of the vehicle (10), which are used in rollover detection and other various other control applications (34).
Abstract:
A system and method for vehicle mobility traction/ride control. The system includes a mode controller configured to output control signals to a variety of vehicle control subsystems in response to operator mode selection input.