Patent classifications
B60T2270/20
Control Apparatus for Electric Vehicle, Control System for Electric Vehicle, and Method for Controlling Electric Vehicle
An object of the present invention is to provide a control apparatus for an electric vehicle that can achieve an effect of eliminating or reducing a vibration regardless of a rotational direction of a wheel. According to one embodiment of the present invention, a first vibration damping control torque calculated by a first calculation method based on a signal of a wheel speed sensor when an electric vehicle moves forward, or a second vibration damping control torque calculated by a second calculation method different from the first calculation method when the electric vehicle moves backward is selectively output.
BRAKING CONTROL DEVICE FOR VEHICLE
The present invention comprises: a first wheel cylinder on either the left or right front wheel side of a vehicle; a second wheel cylinder on the other side; a first pressure-regulating mechanism that pressurizes the brake fluid inside the first wheel cylinder; a second pressure-regulating mechanism that pressurizes brake fluid inside the second wheel cylinder; and a normally-closed opening/closing means interposed in a connecting fluid path connecting the first wheel cylinder and the second wheel cylinder control means: determines whether or not the operation of a brake operation member is a sudden operation; and, if a sudden operation is determined, puts the opening/closing means in a connected state and, by using the first and second pressure-regulating mechanisms, increases the pressure of the brake fluid inside the first and second wheel cylinders.
Control Apparatus for Electric Vehicle
The present invention provides a control apparatus capable of acquiring a sufficient effect of eliminating or reducing a torsional vibration generated on a drive shaft in an electric vehicle including a drive wheel configured to be driven by an electric motor via the drive shaft. The control apparatus calculates a first damping control torque for canceling out a vibration component based on a difference between a motor rotational speed and a vehicle body speed, and calculates a drive torque instruction value for driving the electric motor by adding a driver request drive torque and the first damping control torque.
System and method for traction control
A system includes a plurality of wheels, a braking system, and one or more sensors. The plurality of wheels includes a guardian wheel and at least one non-guardian wheel and is disposed on a wheeled vehicle. The braking system is operatively connected to the guardian and non-guardian wheels and applies a first braking force to the at least one non-guardian wheel and a second braking force to the guardian wheel. The second braking force increases a slide risk of the guardian wheel beyond a slide risk of the at least one non-guardian wheel. One or more sensors disposed within the wheeled vehicle detect sliding of the guardian wheel allowing a corrective action to be taken to prevent sliding of the at least one non-guardian wheel.
ABS STRATEGY FOR HYBRID BRAKE ACTUATORS
A method of managing the braking force applied on the wheels of a vehicle including hybrid brake actuators is provided. In particular, safety functions, such as ABS and ESP are performed using hybrid actuators.
Brake System and Apparatus
A brake system includes a reservoir, a master cylinder module, a brake pedal, a push rod, a first pressure control unit, a second pressure control unit, a first electronic control unit (ECU), a second ECU, and a redundant ECU. The first ECU is configured to control a brake actuator in the first pressure control unit, the second ECU is configured to control a brake actuator in the second pressure control unit, and the redundant ECU is configured to control at least one brake actuator in the first pressure control unit and/or at least one brake actuator in the second pressure control unit.
System and method for traction control
A system includes a sensor and a controller. The sensor is configured to detect sliding of a wheel of a vehicle. The controller is configured to communicate with the sensor and a traction motor operatively connected to the wheel such that the traction motor selectively applies forces in at least one direction to the wheel during operation. The controller is further configured to direct the traction motor to apply a motoring slide reducing force to the wheel when the sensor detects sliding of the wheel resulting from a frictional braking force.
ELECTRO MECHANICAL BRAKE SYSTEM AND CONTROL METHOD THEREOF
Disclosed is electro mechanical brake system including: first pedal sensor, second pedal sensor, and third pedal sensor configured to detect pedal effort applied to brake pedal and generate first braking signal, second braking signal, and third braking signal; first EMB, second EMB, third EMB, and fourth EMB respectively installed in plurality of wheels of vehicle and configured to provide braking force to plurality of wheels of vehicle; first brake controller connected to first pedal sensor, and configured to obtain first target braking torque based on first braking signal and transmit first target braking torque to first, second, third and fourth EMBs; and second brake controller connected to first pedal sensor, second pedal sensor, and third pedal sensor, and configured to obtain second target braking torque based on first braking signal, second braking signal, and third braking signal and transmit second target braking torque to first, second, third and fourth EMBs.
BRAKE SYSTEM AND BRAKE CONTROL METHOD
A brake system includes a service brake and a parking brake that brake a vehicle including a lift axle capable of ascending and descending. The brake system further includes a brake blocker device and a controller that controls the brake blocker device. The brake blocker device blocks at least one of supply of compressed air to the service brake and supply of compressed air to the parking brake. The service brake and the parking brake act on the lift axle. The controller actuates the brake blocker device when the lift axle is at a lifted position.
ELECTROHYDRAULIC BRAKE FOR A VEHICLE
An electrohydraulic brake for a vehicle, which includes an electronic controller having an implemented regulation function, which is carried out during a braking operation as needed in at least one regulating cycle, wherein during the regulating cycle, at least one brake pressure reduction and at least one brake pressure build-up take place in at least one hydraulic brake actuator. The electrohydraulic brake includes a hydraulic fluid reservoir, a pump, and at least one pressure accumulator. The electronic controller controls at least the drive machine for the pump and/or the valve device.