Patent classifications
B60T2250/04
Brake system
A brake system comprises a hydraulic braking device configured to generate a hydraulic braking force; and a regenerative braking device configured to generate a regenerative braking force by an electric motor; wherein the hydraulic braking device comprises a master cylinder configured to generate a hydraulic pressure corresponding to a displacement amount of a brake pedal by discharging a brake oil; a plurality of valves disposed in a flow path connecting a plurality of wheel cylinders and the master cylinder; an accumulator disposed in the flow path; and an electronic control unit (ECU) configured to control the plurality of valves so that the brake oil discharged from the master cylinder is stored in the accumulator, and to transmit a request signal for generating the regenerative braking force to the regenerative braking device.
BRAKING SYSTEM FOR A RAIL-MOUNTED TRAVELING UNIT OF A TRANSFER VEHICLE
A braking system for a rail-mounted traveling unit of a transfer vehicle. A brake arrangement can be adjusted between a braking position and a venting position and which is designed to exert a settable braking torque in the braking position. A control unit is designed to determine a braking torque and to activate accordingly the brake arrangement. A sensor arrangement detects an operating state of the transfer vehicle and external operating influences and transmits these to the control unit. During operation of the transfer vehicle the sensor arrangement detects the operating state of the transfer vehicle and the external operating influences on the transfer vehicle at periodic intervals and transmits these to the control unit as operating state data and operating influence data. During a braking process, the control unit determines a braking torque to be applied and activates the brake arrangement.
Vehicle control device
A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. The distribution amount setter sets the distribution amount to zero when the steering angle SA is less than a first steering angle threshold where the steering angle SA is recognizable as a substantially neutral state.
APPARATUS AND METHOD FOR ESTIMATING INCLINATION OF VEHICLE
An apparatus for estimating inclination of a vehicle includes a vehicle information receiver configured to collect travel information of the vehicle including a wheel speed, a driving torque, and a longitudinal acceleration sensor value, a vehicle stop determinator configured to determine, based on the travel information received from the vehicle information receiver, whether the vehicle satisfies a vehicle stop condition, a disturbance corrector configured to correct disturbance of the longitudinal acceleration sensor value depending on whether the vehicle stop condition is satisfied, and An inclination estimator configured to estimate the inclination of the vehicle using a longitudinal acceleration input value corrected by the disturbance corrector.
Optimizing integrated trailer brake control for battery electric vehicle (bev) applications
In exemplary embodiments, methods and systems are provided that include: sensors configured to obtain sensor data for a vehicle having both friction braking and regenerative braking capabilities and coupled to a trailer, the sensor data including: friction braking data as to a vehicle friction braking force for the vehicle; and regenerative braking sensor data as to a vehicle regenerative braking force for the vehicle; and a processor coupled to the sensors and configured to at least facilitate controlling braking of the trailer by providing trailer braking force, via instructions provided by the processor, based on both the friction braking data and the regenerative braking sensor data, with a sensitivity toward the vehicle regenerative braking force such that the trailer braking force is affected differently by the vehicle regenerative braking force versus the vehicle friction braking force.
CONTROLLED DECELERATION FOR PARKING OF A VEHICLE
Examples provide a system and method for controlled deceleration for parking a vehicle. The system includes a parking brake control device, a sensor configured to measure a speed of the vehicle and output a measured vehicle speed, a parking brake, a primary hydraulic system including a primary controller and a primary hydraulic pressure generator, and a secondary hydraulic system including a secondary controller and a secondary hydraulic pressure generator. The secondary controller is configured to determine whether the vehicle is travelling at a non-zero speed while the parking brake control device is actuated. In response to that determination, the secondary controller determines whether hydraulic braking via the primary hydraulic system is available. When hydraulic braking via the primary hydraulic system is not available, the secondary controller controls the secondary hydraulic pressure generator to generate hydraulic braking pressure.
Autonomous emergency braking system and method of controlling the same
Disclosed herein are an autonomous emergency braking system and a method of controlling the same, capable of autonomously performing emergency braking using information detected by a radar sensor. The autonomous emergency braking system includes a radar sensor and an ECU. The radar sensor transmits a radio wave and receives a wave reflected from an object in front of a vehicle, so as to detect the object in front of the vehicle. The ECU receives object detection information from the radar sensor, and stops or puts off autonomous emergency braking when the number of times the object is detected within a predetermined distance is equal to or greater than a predetermined number of times, based on the received object detection information.
ELECTRICALLY POWERED BRAKE DEVICE
This electric brake device includes: a brake rotor; a friction member; friction member operator configured to bring the friction member into contact with the brake rotor; an electric motor configured to drive the friction member operator; and a controller configured to control a braking force by means of the electric motor. The controller includes: heat balance degree estimator configured to estimate a balance degree among heat generation amounts of a plurality of exciting coils in the electric motor; and heat load balancing section configured to decrease a heat generation amount of a specific exciting coil when the heat balance degree estimator has estimated that the heat generation amount of the specific exciting coil among the plurality of exciting coils is larger than heat generation amounts of the other exciting coils.
Method for managing the braking of an aircraft with speed measurement close to the braked wheels
The invention relates to a method for managing the braking of an aircraft fitted with undercarriages (1) bearing braked wheels (2), the method comprising the step of generating braking commands by means of a braking computer (4) for each of the braked wheels as a function of longitudinal speed information representative of a longitudinal movement of the wheels in question, characterized in that there is placed at the bottom of the undercarriage, close to the braked wheels, a sensor adapted for generating a signal that can be used for generating the longitudinal speed information used for generating the braking commands.
Method for detecting and correcting vehicle reference speed and vehicle system
A method for detecting and correcting vehicle reference speed, in particular when the speed undergoes a controlled reduction due to drag or regeneration torque, of an all-wheel drive vehicle. The longitudinal acceleration of the motor vehicle, and the wheel accelerations are determined by sensors. The method is to provide reliable determination of the vehicle reference speed and the initiation of corrective measures once a controlled reduction has been recognized. The steps include filtering the wheel accelerations, filtering the longitudinal accelerations, forming a corrected longitudinal acceleration by applying a safety offset and a correction offset to the filtered longitudinal acceleration, and temporal integration of the difference between the corrected longitudinal acceleration and the respective wheel acceleration. In the event a threshold value of the absolute value of the difference is exceeded during a predetermined time interval with a preset number of wheels, step for adjusting the correction offset are initiated.