Abstract: A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: obtain (908) information indicative of relative traction levels between different wheels (FL, FR, RL, RR) of the vehicle; and in dependence on the information, control (912) the active suspension system to increase normal force through a wheel (FR) of the vehicle having relatively high traction compared to one or more other wheels (FL, RL, RR) of the vehicle, and decrease normal force through a wheel (FL) of the vehicle having relatively low traction compared to one or more other wheels (FR, RL, RR) of the vehicle.

Abstract: A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: detect (1004) a ramp (202) approached by an overhang of the vehicle; and in dependence on detecting the ramp, control (1020) the active suspension system to modify a relative ride height between a leading ride height at a set of leading wheels (FL, FR) of the vehicle and a trailing ride height at a set of trailing wheels (RL, RR) of the vehicle, to increase a ramp angle (?, ?) of the vehicle relative to the ramp.

Abstract: A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: determine (804) that an entry condition is satisfied; in dependence on satisfaction of the entry condition, transmit (806) a request to the active suspension system to create clearance beneath a first wheel (FL, RR) of the vehicle but not create clearance beneath a plurality of other wheels (FR, RL) of the vehicle.

Abstract: A control system (300) for controlling an active suspension system (104) of a vehicle (100), the active suspension system comprising suspension actuators (502), the control system comprising one or more controller (301), wherein the control system is configured to: in dependence on an activation signal (904), provide (908) a control signal to the active suspension system to cause the suspension actuators of the active suspension system to repetitively pulse vertical force through wheels (FR, FL, RR, RL) of the vehicle in a controlled pattern determined by the one or more controller, to vary wheel-to-surface contact patch forces, wherein the pattern comprises repetitively pulsing vertical force through at least one of the wheels at a first phase and through at least one other of the wheels at a second phase.

Abstract: A control system (300) for controlling an actuator arrangement (104) of a vehicle (100), the actuator arrangement being capable of modifying a camber angle of at least one wheel of the vehicle, the control system comprising one or more controller (301), wherein the control system is configured to: receive (1004) surface information indicative of a low-traction surface over which the vehicle is travelling; and independence on receiving the surface information, control (1012) the actuator arrangement of the vehicle such that a wheel-to-surface contact patch of the at least one wheel is laterally moved relative to the vehicle as a result of camber modification.

Abstract: A control system (300) for controlling an active suspension system (104) of a vehicle (100), the vehicle having one or more leading wheels (FL, FR) and one or more trailing wheels (RL, RR), the control system comprising one or more controller (301), wherein the control system is configured to: determine (708) that vehicle movement is impeded at a leading wheel (FR) of the vehicle; and in dependence on the determination, transmit (712) a transient force request to the active suspension system to transiently unload the leading wheel.

Abstract: Aspects of the present invention relate to a method and to a control system for controlling an active suspension of a vehicle, the control system comprising one or more controllers, the control system configured to: obtain information indicative of a change of gradient of a driving surface in a direction of travel; and control the active suspension to adjust relative ride height between a front and rear of a vehicle body of the vehicle above the driving surface beneath the vehicle in dependence on the change of gradient.

Abstract: The invention resides in a system and method for determining the manner in which a vehicle is driven. The system comprises a processor comprising an input configured to receive dynamic ride data from at least one on-board vehicle dynamic ride sensor, wherein the processor is configured (i) to calculate an output signal which is indicative of whether the dynamic ride data exceeds at least one dynamic ride data threshold value for a predetermined period of time; and (ii) to compare the output signal with at least one output threshold to determine the manner in which the vehicle is driven. The processor comprises an output configured to send a control signal to one or more vehicle components, wherein the control signal is indicative of the manner in which the vehicle is driven.

Abstract: The present invention relates to a system for determining whether to inhibit lowering of the ride height of a vehicle when the vehicle speed exceeds a speed threshold value. The system includes a processor having an input configured to receive ride attribute data from at least one on-board vehicle ride attribute sensor, the ride attribute data being indicative of the roughness of the surface over which the vehicle is travelling, and a data memory configured to store at least one predetermined ride attribute threshold value for the or each ride attribute sensor. The processor is configured to calculate a ride attribute parameter in dependence on the received ride attribute data for the or each ride attribute sensor.

Abstract: Aspects of the present invention relate to a control system, a suspension system, a vehicle and a method. A control system comprising one or more controllers is configured to: receive at least one vehicle dynamics signal, wherein the at least one vehicle dynamics signal is indicative of a vehicle dynamics parameter, determine a current dynamic usage of a vehicle in dependence on the received at least one vehicle dynamics signal, determine a control parameter for an actuator of the vehicle in dependence at least in part on the current dynamic usage of the vehicle, and output a control signal to control the actuator in dependence on the control parameter.

Abstract: The present invention relates to a system for determining whether to inhibit lowering of the ride height of a vehicle when the vehicle speed exceeds a speed threshold value. The system includes a processor having an input configured to receive ride attribute data from at least one on-board vehicle ride attribute sensor, the ride attribute data being indicative of the roughness of the surface over which the vehicle is travelling, and a data memory configured to store at least one predetermined ride attribute threshold value for the or each ride attribute sensor. The processor is configured to calculate a ride attribute parameter in dependence on the received ride attribute data for the or each ride attribute sensor.

Abstract: The invention resides in a system and method for determining the manner in which a vehicle is driven. The system comprises a processor comprising an input configured to receive dynamic ride data from at least one on-board vehicle dynamic ride sensor, wherein the processor is configured (i) to calculate an output signal which is indicative of whether the dynamic ride data exceeds at least one dynamic ride data threshold value for a predetermined period of time; and (ii) to compare the output signal with at least one output threshold to determine the manner in which the vehicle is driven. The processor comprises an output configured to send a control signal to one or more vehicle components, wherein the control signal is indicative of the manner in which the vehicle is driven.

Abstract: A vehicle control system has a plurality of subsystem controllers including an engine management system 28, a transmission controller 30, a steering controller 48, a brakes controller 62 and a suspension controller 82. These subsystem controllers are each operable in a plurality of subsystem modes, and are all connected to a vehicle mode controller 98 which controls the modes of operation of each of the subsystem controllers so as to provide a number of driving modes for the vehicle. Each of the modes corresponds to a particular driving condition or set of driving conditions, and in each mode each of the functions is set to the function in mode most appropriate to those conditions.

Abstract: A vehicle air suspension system includes a control unit 32 which is arranged to produce a running measure of the level of cross articulation of the two axles 18, 20 and, if it exceeds a certain level indicating that the vehicle is on rough terrain, to open respective interconnections 34, 36 between the suspension units 24 on opposite ends of each axle so as to reduce the resistance to that articulation. The interconnections are arranged to close when the vehicle speed increases so as to provide roll control.

Abstract: A vehicle air suspension system includes a control unit 32 which is arranged to produce a running measure of the level of cross articulation of the two axles 18, 20 and, if it exceeds a certain level indicating that the vehicle is on rough terrain, to open respective interconnections 34, 36 between the suspension units 24 on opposite ends of each axle so as to reduce the resistance to that articulation. The interconnections are arranged to close when the vehicle speed increases so as to provide roll control.

Abstract: A vehicle roll control system uses two accelerometers (38, 40) on the vehicle to detect body roll and then filters out higher frequency roll movements as indicative of a rough road surface. The system also monitors vehicle speed, and increases roll stiffness in response to measured increase in vehicle speed, but decreases roll stiffness in response to detected rough road surfaces.

Abstract: A vehicle air suspension system includes a control unit 32 which is arranged to produce a running measure of the level of cross articulation of the two axles 18, 20 and, if it exceeds a certain level indicating that the vehicle is on rough terrain, to open respective interconnections 34, 36 between the suspension units 24 on opposite ends of each axle so as to reduce the resistance to that articulation. The interconnections are arranged to close when the vehicle speed increases so as to provide roll control.

Abstract: A vehicle control system comprises a plurality of subsystem controllers including an engine management system 28, a transmission controller 30, a steering controller 48, a brakes controller 62 and a suspension controller 82. These subsystem controllers are each operable in a plurality of subsystem modes, and are all connected to a vehicle mode controller 98 which controls the modes of operation of each of the subsystem controllers so as to provide a number of driving modes for the vehicle. Each of the modes corresponds to a particular driving condition or set of driving conditions, and in each mode each of the functions is set to the function mode most appropriate to those conditions.

Abstract: A vehicle control system has a plurality of subsystem controllers including an engine management system 28, a transmission controller 30, a steering controller 48, a brakes controller 62 and a suspension controller 82. These subsystem controllers are each operable in a plurality of subsystem modes, and are all connected to a vehicle mode controller 98 which controls the modes of operation of each of the subsystem controllers so as to provide a number of driving modes for the vehicle. Each of the modes corresponds to a particular driving condition or set of driving conditions, and in each mode each of the functions is set to the function in mode most appropriate to those conditions.

Abstract: A vehicle control system has a plurality of subsystem controllers including an engine management system 28, a transmission controller 30, a steering controller 48, a brakes controller 62 and a suspension controller 82. These subsystem controllers are each operable in a plurality of subsystem modes, and are all connected to a vehicle mode controller 98 which controls the modes of operation of each of the subsystem controllers so as to provide a number of driving modes for the vehicle. Each of the modes corresponds to a particular driving condition or set of driving conditions, and in each mode each of the functions is set to the function in mode most appropriate to those conditions.