An electric suspension apparatus that is provided in a vehicle includes an electric actuator and a control ECU. The electric actuator is configured to be supplied with a high voltage from a battery. The control ECU is configured to control the battery and the electric actuator. The control ECU includes a stop determination part and an output control part. The stop determination part is configured to determine whether the vehicle is in a stopped state. The output control part is configured to stop output of the high voltage to the electric actuator based on time that elapses after the vehicle stops.

Method and apparatus for wheel speed estimation include an electrical powertrain having an electric motor providing a motor speed, a wheel, and a mechanical coupling between the motor and the wheel, and an electronic control unit calculating an estimated wheel speed based on the motor speed and mechanical dynamic models of the electrical powertrain.

A vehicle control system includes a plurality of ride height sensors, a brake system and a controller. The ride height sensors may determine ride height information associated with individual wheels of a vehicle. The brake system may apply braking force to the individual wheels of the vehicle responsive to provision of a brake application signal. The controller may generate the brake application signal during vehicle pitch based on vehicle speed and the ride height information.

A vehicle includes a body including suspension components, multiple wheels coupled to the body, a suspension sensor coupled to one of the suspension components or at least one of said multiple wheels, a camera, a display connected to the camera to display at least part of the camera view, a processor receiving inputs from the suspension sensor, and memory coupled to the processor. The memory includes a program from which an actual horizontal wheel position relative to a path of travel of the vehicle is determined as a function of a vertical position of the at least one of said multiple wheels. And the processor causes an image representative of the actual horizontal wheel position to appear on the display, and wherein vertical is in the direction of gravity and horizontal is perpendicular to the direction of gravity.

Vehicles may be composed of a relatively few number of “modules” that are assembled together during a final assembly process. An example vehicle may include a body module, a first drive module coupled to a first end of the body module, and a second drive module coupled to a second end of the body module. One or both of the drive modules may include a pair of wheels, a battery, an electric drive motor, and/or a heating ventilation and air conditioning (HVAC) system. One or both of the drive modules may also include a crash structure to absorb impacts. If a component of a drive module fails or is damaged, the drive module can be quickly and easily replaced with a new drive module, minimizing vehicle down time.

The present invention relates to a method for determining a desired speed of a vehicle (1), preferably an autonomous vehicle. The vehicle comprises a shock absorber arrangement (2), preferably an hydraulic shock absorber arrangement, having an elastic hysteresis. The method comprises—obtaining (501) a reference value indicative of the energy dissipated by the shock absorber arrangement (2) in a reference driving condition of a vehicle and—determining (502) a speed of the vehicle for which the value indicative of the energy dissipated by the shock absorber arrangement (2) in a similar driving condition is expected to fall within a predetermined energy dissipation range, using said reference value.

This control system comprises: a control device which, while a vehicle is driven, receives power to control the operation of a moving part and which, while the vehicle is stopped, does not receive power; and a system which is capable of communicating with the control device, and which, when the vehicle is stopped, receives power so as to be capable of ascertaining first information pertaining to time or which is capable of acquiring, during the driving, second information pertaining to times before and after when the vehicle was stopped. When the vehicle is restarted after being stopped, the control device uses at least one of the first information and the second information received from the system to ascertain the time elapsed while the vehicle was stopped, and uses the elapsed time to control the operation of the moving part.

An object of the present invention is to provide a vehicle motion state estimation device and method that can estimate the vertical motion state amount with high accuracy by taking into consideration vertical force in which the frictional force acting in the front-rear direction or lateral direction of the wheel acts on the vehicle body due to the geometry of suspension. A vehicle motion state estimation device in a vehicle in which a wheel and a vehicle body are coupled via a suspension, the vehicle motion state estimation device including: a vertical motion-caused wheel speed component estimation unit that estimates a wheel speed component caused by vertical motion of the vehicle; a vertical force estimation unit that calculates vertical force in which frictional force of the wheel caused by motion of the vehicle acts on the vehicle body by geometry of the suspension; and a vertical motion estimation unit that estimates a state amount of vertical motion of a vehicle, in which the vertical motion estimation unit estimates a state amount of vertical motion of the vehicle based on a wheel speed component from the vertical motion-caused wheel speed component estimation unit and vertical force acting on the vehicle body from the vertical force estimation unit.

The cloud includes a server and a storage device. The storage device includes a road surface information map. When a first sampling distance is equal to or longer than a first distance threshold, the server performs re-sampling to interpolate data in such a manner that sampling positions located at a second sampling distance and unsprung mass member displacements of the respective sampling positions exist so as to produce re-sampled data-for-producing-map. The server stores a sub-sectional unsprung mass displacement in a storage area corresponding to a sub-section of the road surface information map, based on the re-sampled data-for-producing-map.

A driver assistance apparatus includes an environment recognition unit, a travel state detection unit, a driver assistance control unit, and a driving skill estimation unit. The driver assistance control unit makes a driver assistance control based on an output of the environment recognition unit regarding the environment and an output of the travel state detection unit regarding travel state. The driver assistance control includes assisting a driver in driving in one or both of entering a curved road and traveling along the curved road. The driver assistance control unit changes contents of the driver assistance control, in accordance with the driving skill of the driver estimated by the driving skill estimation unit. The driving skill estimation unit makes the estimation of the driving skill at least once in each driving cycle of the vehicle.