Patent classifications
B60T2250/04
BRAKING SYSTEM FOR ELECTRIC VEHICLE, CONTROL METHOD, AND ELECTRIC VEHICLE
A braking system, a method, and an electric vehicle. The braking system includes a central controller and a plurality of wheel end braking apparatuses. Each wheel end braking apparatus is configured to output braking force to a brake disc of one wheel to brake the electric vehicle. The central controller is configured to control wheel end braking apparatuses corresponding to rear wheels of the electric vehicle to output braking force to implement drifting.
Inverse tyre model for advanced vehicle motion management
A control unit (130, 140) for controlling a heavy duty vehicle (100), wherein the control unit is arranged to obtain input data indicative of a desired wheel force (Fx, Fy) to be generated by at least one wheel (210) of the vehicle (100), and to translate the input data into a respective equivalent wheel speed or wheel slip to be maintained by the wheel (210) to generate the desired wheel force (Fx, Fy) based on an inverse tyre model (f.sup.1) for the wheel (210), wherein the control unit (130, 140) is arranged to obtain the inverse tyre model in dependence of a current operating condition of the wheel (210), and wherein the control unit (130, 140) is arranged to control the heavy duty vehicle (100) based on the equivalent wheel speed or wheel slip.
System for determining the forward speed of at least one vehicle
Described is a system for determining the forward speed of at least one vehicle, comprising control means, each associated with at least one axle, and a communication means for transmitting signals or values between the control means. At measurement instants successive in time, each control means generates a corresponding sliding signal of the respective at least one axle. At a sharing instant, each control means transmits the respective sliding signal, and in the no-sliding condition, the value of a quantity related to the rotation of the respective axle or its own estimated forward speed of the vehicle to the other control means. When all the sliding signals indicate a sliding condition, one of said control means controls first braking means associated with one of the axles, so as to reduce a braking force applied to said axle.
Brake cooling control system
In some examples, a cooling system defines a first flow path for a first gas stream and a second flow path for a second gas stream. The cooling system is configured to merge the first gas stream and the second gas stream to produce a mixed gas stream and provide the mixed gas stream to cool a brake assembly of a wheel. Control circuitry is configured to adjust a flow rate of the second gas stream based on a pressure and/or other flow parameter of the first gas stream. In examples, the control circuitry is configured to initiate and/or substantially cease cooling to the brake assembly based on a temperature signal indicative of a temperature of the brake assembly.
COMPUTER SYSTEM FOR TEMPORARILY DISABLING AN AUTOMATIC APPLICATION OF A PARKING BRAKE OF A VEHICLE, VEHICLE COMPRISING SUCH A COMPUTER SYSTEM, METHOD, COMPUTER PROGRAM PRODUCT AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
A computer system for temporarily disabling an automatic application of a parking brake of a vehicle is provided. The system includes processing circuitry configured to apply automatically the parking brake of the vehicle; upon a command of a driver of the vehicle, temporarily disable the automatic application of the parking brake; the processing circuit being further configured to receive data from a door sensor and a speed sensor, and to end the disabling of the automatic application of the parking brake if the processing circuit determines that one of the following conditions is met: a door of the vehicle is closed; the vehicle has a speed greater than a first speed threshold, and a gear of the vehicle is engaged; or a time period greater than a predefined time period has elapsed, the time period starting when the processing circuitry determines that the driver is inactive.
HAPTIC FEEDBACK FOR TRAILER BRAKE CONTROL
A vehicle, includes a slider for controlling brakes of a towed vehicle operably coupled with the vehicle, an actuator configured to provide a target force to the slider, a first sensor that detects a position of the slider, and a second sensor for detecting a speed of the vehicle. A control circuitry is configured to determine the target force based on the position and the speed, determine a change in the position, and control the actuator to apply the target force in response to the change in the position.
Device for controlling motor for vehicle
A device for controlling a motor for a vehicle is disclosed. The device may include: a first inverter for supplying power to a first winding wound to the motor; a second inverter for supplying power to a second winding wound to the motor; a motor position sensor for detecting at least one of a rotational position or a rotational speed of the motor by being mounted to the motor; a current sensor for detecting at least one of a current output from the first inverter to the motor or a current output from the second inverter to the motor; a first controller for controlling the first inverter; and a second controller for controlling the second inverter.
Autonomous brake wear estimation
Methods and systems for estimating autonomous brake wear in a vehicle. A brake table includes a correspondence between a desired brake request and an applied brake force. Vehicle deceleration data is generated during several braking events of the vehicle. The vehicle deceleration data includes (i) desired brake requests issued during the braking events, and (ii) vehicle speeds during the brake request. A learning model is executed on the deceleration data. The learning model is configured to estimate a brake wear based on changes in differences between (a) the desired brake requests issued during the braking events and (b) the vehicle speeds during the brake requests. Based on the estimated brake wear, the brake table is modified in order to yield a modified brake table. A new desired brake request is generated using the modified brake table.
Intelligent hydraulic trailer brake
Systems and apparatuses include a service brake system structured to selectively provide pressurized hydraulic fluid to a left service brake and a right service brake, and selectively output pressure to a pilot port; a hydraulic trailer brake system including a solenoid actuated intelligent brake turn actuator selectively allowing or inhibiting a flow of pressurized hydraulic fluid to a trailer brake work port; and one or more processing circuits that determine a current vehicle speed based on the information received from a wheel speed sensor, compare the current vehicle speed to a brake turn threshold speed, and actuate the intelligent brake turn actuator to inhibit the flow of pressurized hydraulic fluid to the trailer brake work port when the current vehicle speed is less than the brake turn threshold speed.
Wheel chock system
A wheel chock system. In one aspect of the invention, an actuator is configured to move a pair of wheel chocks to an activated position in which motion of the wheel is prevented. A control unit controls the actuator and, based upon determination that a plurality of predefined conditions are met, the control unit may after having received an operator-initiated activation request, cause the actuator to move the wheel chocks from the inactivated position to the activated position. In another aspect of the invention, the actuator comprises a bi-directional motor and a gear mechanism, for moving the wheel chocks to the activated position. The invention also relates to a vehicle comprising a wheel chock system.