An adjustment system and method for adjusting a chassis property of a motor vehicle wherein an understeering sensitivity of the motor vehicle is increased upon detecting that a trailer has been coupled to the motor vehicle. A detection unit operates to detect when a trailer is attached or coupled to the motor vehicle.

Systems and methods to detect abnormalities within a stabilizer system for a vehicle. A method includes receiving suspension system data from one or more vehicle sensors, calculating a roll gradient from the suspension system data, determining whether the calculated roll gradient is greater than a predetermined roll gradient threshold, and setting a diagnostic notification if the calculated roll gradient is greater than the predetermined roll gradient threshold.

A system and method for reducing energy consumption by an active suspension system for a vehicle is disclosed. The system and method includes determining whether the vehicle is in park or neutral and determining the speed of the vehicle. The active suspension system is set to a normal operating mode if the speed is greater than a predetermined speed. A throttle angle is determined if the speed is less than a predetermined speed. The active suspension system is set to a normal operating mode if the throttle angle is greater than a predetermined angle and to a power saving mode if the throttle angle is less than a predetermined angle for more than a predetermined amount of time.

A method for keeping a vehicle on course by determining a lateral acceleration of the vehicle; establishing a desired lateral inclination of the vehicle depending on the lateral acceleration determined in step a); adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b); and c) carrying out a compensatory engagement by adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b), wherein, in step d), at least one additional compensatory engagement is carried out by an additional active chassis device for the at least partial compensation of a yaw movement of the vehicle caused by the adjustment of the at least one actuator of the active chassis device.

A suspension device includes an actuator device provided with an extensible/contractible actuator body interposed between a sprung member and an unsprung member of a vehicle, a pump that supplies fluid to the actuator body to extend or contract the actuator body, and a controller that controls a rotation number of the pump. The controller has a road surface state index obtainment unit that obtains a road surface state index and a target rotation number determination unit that determines a target rotation number of the pump on the basis of the road surface state index.

A communication system for a vehicle comprises a receiver to receive a signal corresponding to a traveling speed of a lead vehicle, a response device that generates an alert to warn of a change in the traveling speed of the lead vehicle, and a control device coupled to the receiver and the response device, wherein the receiver sends a signal to the control device corresponding to the traveling speed of the lead vehicle and the control device operates the response device in a manner dependent on the traveling speed of the lead vehicle. In some embodiments, the signal comprises one or more of infrared, radio frequency, wireless, WiFi, and Bluetooth. In some embodiments, the communication system further comprises a speed control system coupled to the control device, wherein the control device operates the speed control system in a manner dependent on the traveling speed of the lead vehicle.

The disclosure concerns a tilting vehicle with at least one multi-wheel axle, a vehicle structure and a control unit that is arranged to detect a lateral acceleration acting on the tilting vehicle and actively adjust a tilt angle of the structure of the vehicle about the longitudinal axis thereof In order to optimize adjustment of the tilt angle in a tilting vehicle, the control unit is arranged to adjust the tilt angle so that in a direction of a lateral axis of the structure of the vehicle, a Y component of the lateral acceleration is partially compensated by a Y component of acceleration due to gravity according to a specified compensation proportion. The compensation proportion increases as a function of the lateral acceleration to a global maximum value at a first acceleration, and decreases above the first acceleration.

An adjustment system and method for adjusting a chassis property of a motor vehicle wherein an understeering sensitivity of the motor vehicle is increased upon detecting that a trailer has been coupled to the motor vehicle. A detection unit operates to detect when a trailer is attached or coupled to the motor vehicle.

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.

A traveling control system for a vehicle includes a first sprung structure acceleration sensor, a second sprung structure acceleration sensor, a third sprung structure acceleration sensor, a fourth sprung structure acceleration sensor, and an electronic control unit. The electronic control unit is configured to calculate a vertical acceleration, a roll acceleration, and a pitch acceleration at a gravity center position, calculate vertical accelerations of a sprung structure at positions of a front right wheel, a front left wheel, a rear right wheel, and a rear left wheel, and control traveling of the vehicle based on the vertical accelerations of the sprung structure at the positions of the front right wheel, the front left wheel, the rear right wheel, and the rear left wheel.