Patent classifications
B60G2401/142
METHOD OF CONTROLLING VEHICLE WHEN VEHICLE PASSES OVER SPEED BUMP
A method of controlling a vehicle when the vehicle passes over a speed bump, may include: dividing sections of the road into a first section within a first time period before the front wheel of the vehicle collides with the speed bump, a second section while the front wheel collides with the speed bump, a third section within a second time period before the rear wheel collides with the speed bump, and a fourth section while the rear wheel collides with the speed bump; and controlling and distributing at least one of suspension damping force, driving power and braking force to the front wheel and the rear wheel for each of the first section, the second section, the third section and the fourth section to reduce the amount of impact to be applied when the vehicle collides with the speed bump and to reduce a vertical motion of the vehicle that occurs while the vehicle goes over the speed bump.
TECHNIQUES FOR ADDRESSING UNFAVORABLE ROAD CONDITIONS IN AUTONOMOUS TRUCKING APPLICATIONS
Aspects and implementations of the present disclosure relate to performance and safety improvements for autonomous trucking systems, including techniques of obtaining an identification of an unfavorable condition on a route of an autonomous vehicle (AV), causing the AV to exit the route, and performing one or more waiting loops until the unfavorable condition is resolved, the AV is rerouted, assistance arrives, and the like.
Enhanced vehicle stability
An assembly includes a leadscrew defining a central axis, a strut movable along the leadscrew upon rotation of the leadscrew, a camber angle of a wheel changeable according to movement of the strut along the leadscrew, and a motor drivably connected to the leadscrew, the motor defining a motor axis, wherein the central axis of the leadscrew is transverse to the motor axis.
Method and apparatus for responding to road surface discontinuities
Disclosed embodiments are related to suspension systems including dampers and suspension actuators and related methods of control for mitigating the effects of potholes and other road surface discontinuities.
CONTROL METHOD OF VEHICLE AND CONTROL APPARATUS THEREOF
A control method of a vehicle includes determining a look-ahead time, calculating a predicted passage position by using specific vehicle information having at least a position of a wheel at the current time point, velocity of the vehicle, and the proceeding direction of the vehicle, acquiring a road surface displacement-associated value at the predicted passage position, calculating a final target control force based on the road surface displacement-associated value at the predicted passage position, and controlling a control force generator based on the final target control force.
CONTROL APPARATUS
A controller as a control apparatus controls a shock absorber of a control target wheel (a rear wheel) located in back of a detection target portion (a front wheel) of an unsprung acceleration sensor based on a detection value detected by the unsprung acceleration sensor on the front wheel side provided on a vehicle. In this case, the controller identifies a movement distance (a delay distance) from the detection target portion (the front wheel) and controls the shock absorber of the control target wheel (the rear wheel) located in back thereof based on the detection value of the unsprung acceleration sensor and a vehicle speed for each control period.
RAMP-EQUIPPED VEHICLE
A ramp-equipped vehicle includes: a vehicle-height adjusting mechanism configured to adjust a vehicle height of a vehicle; a ramp configured to be movable between a deployed state and a stored state, the deployed state being a state where the ramp protrudes outwardly from the vehicle, the stored state being a state where the ramp is stored inside the vehicle; and a camera configured to detect a person coming closer to the vehicle. When the camera detects a person coming closer to a doorway of the vehicle during vehicle height adjustment by the vehicle-height adjusting mechanism, the vehicle height adjustment by the vehicle-height adjusting mechanism is interrupted.
ROAD SURFACE INFORMATION PRODUCING APPARATUS AND VEHICLE CONTROL SYSTEM
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.
Active vehicle height control method
An active vehicle height control method may include securing a road surface profile for unevenness of a road ahead of a vehicle and forming a target vehicle height profile by filtering the road surface profile. In addition, a controller is configured to form a disturbance profile using the road surface profile and the target vehicle height profile. The controller estimates vehicle behavior for the disturbance profile. Furthermore, the controller determines an inverse-phase control force that minimizes the estimated vehicle behavior, and drives an actuator using the inverse-phase control force to adjust a height of the vehicle.
Apparatus and method for controlling air suspension of vehicle
An apparatus and method for controlling an air suspension of a vehicle are disclosed. The apparatus includes a compressor configured to supply compressed air, a reservoir configured to store compressed air supplied from the compressor and to supply the stored compressed air to the air suspension during vehicle height control, a road information provider configured to provide road state information of a road in front of the vehicle during travel of the vehicle, and a controller configured to determine a vehicle height control position of the air suspension based on the road state information and to operate the compressor before the vehicle arrives at the determined vehicle height control position, thereby filling the reservoir with the compressed air such that an internal pressure of the reservoir reaches at least a predetermined reference pressure.