Patent classifications
B60T2201/04
Braking Power Management
An apparatus comprising an interface, a memory and a processor. The interface may be configured to receive sensor data samples during operation of a vehicle. The memory may be configured to store the sensor data samples over a number of points in time. The processor may be configured to analyze the sensor data samples stored in the memory to detect a pattern. The processor may be configured to manage an application of brakes of the vehicle in response to the pattern.
REGENERATIVE BRAKING CONTROL METHOD AND REGENERATIVE BRAKING CONTROL DEVICE
A regenerative braking control method and a regenerative braking control device of the present invention control a drive source that generates a regenerative brake force in such a manner that an upper limit of regenerative deceleration when a driver executes manual control becomes smaller than an upper limit of regenerative deceleration when automatic control is executed.
Automatic downhill snub braking
Methods and apparatus are disclosed herein that perform automatic downhill snub braking. An example apparatus disclosed herein includes an electronic powertrain controller to cause a deceleration of a vehicle in response to a first request from an electronic cruise controller, the first request responsive to a change in grade of a driving surface and an electronic brake controller to apply snub braking to the vehicle in response to a second request received from the electronic cruise controller, the second request responsive to a speed of the vehicle reaching a maximum speed.
Vehicle stability control system and method
A vehicle stability control system and a vehicle stability control method which are capable of more improving lateral stability of a vehicle when the vehicle is turning on a descent inclined road, may enable the vehicle to turn along a turning trace intended by a driver through cooperative control of active front steering (AFS) control and an electronic stability control (ESC) when the vehicle is turning on the descent inclined road.
REDUCING BRAKING TORQUE INSTEAD OF ENGINE TORQUE TO ACCELERATE VEHICLE DURING VEHICLE HILL DESCENT CONTROL
A vehicle hill descent control system and method for controlling a vehicle during a hill descent receives inputs from an accelerator pedal position sensor and a brake pedal sensor. The method controls the engine drivetrain system to engine idling and controls the braking control system to maintain vehicle speed by increasing braking torque to minimize or offset a vehicle speed increase due to gravity. In vehicle hill descent mode, when a vehicle user actuates the accelerator pedal, the engine idling does not change. Instead, the electronic control unit operates to decrease braking torque so the vehicle speed is increased.
Braking control system
A braking control system for an automotive vehicle having driven rear wheels which are coupled through a coupling arrangement to the front wheels of the vehicle so as to switch the vehicle between two-wheel drive mode and four-wheel drive mode, comprises an input for receiving a signal indicative of the nature of the terrain on which the vehicle is parked, wherein the nature of the terrain includes the incline of the terrain and one or more additional indicators of the nature of the terrain, and a processor configured to determine, depending on the signal, a braking force to be applied to the front wheels to brake the vehicle securely. The braking system comprises an output for providing a signal to the coupling arrangement to apply the determined braking force to the front wheels. The processor is also configured to receive a further signal indicative of whether the park brake of the vehicle is applied to the rear vehicle wheels, and is configured to disable the output in the event that the park brake is not applied.
Method and a system for controlling a vehicle during a downhill start
The invention relates to a method and an arrangement for controlling a vehicle (100) during a downhill start. The vehicle comprises a service brake (131a, 131b; 132a, 132b; 33a, 133b), an engine (119) and a transmission (120) being arranged between the engine and at least one driven axle (123), wherein the service brakes, the engine and the transmission are controlled by an electronic control unit (140). The method involves registering that the vehicle is located on a downhill gradient; registering an action from the driver, indicating a request to start the vehicle; controlling the service brake to maintain the vehicle stationary during a predetermined time after the request before initiating a controlled service brake release; controlling a gradual release of the service brake in response to at least one detected first vehicle operating parameter; and releasing the service brake when detecting that a predetermined threshold for at least one second vehicle operating parameter has been attained.
Method for operating a motor vehicle
A method for operating a motor vehicle, which is equipped with a plurality of wheels and with a plurality of electric machines. Each electric machine can be coupled to at least one wheel and be operated in a plurality of operating modes. The respective electric machines perform rotations in a first engine operating mode in a first direction of rotations. Electric energy is converted to mechanical energy. The at least one wheel is rotated in a forward direction, whereby the vehicle is driven with the at least one wheel. The respective electric machines perform rotations in a second generator operating mode in a second direction of rotations, which is opposite to the first direction of rotations, whereby electric energy is converted to mechanical energy.
Hill descent system for vehicle and control method thereof
A hill descent system for a vehicle and a control method thereof comprising: wheels; wheel speed sensors used for detecting the speeds of the wheels; motors used for selectively driving or braking the wheels; a motor controllers, for controlling the working states of the motors; resolver sensors for detecting the rotational speeds of the motors; and a vehicle control unit for determining the actual downhill speed of the vehicle and adjusting the working states of the motors to control the descent of the vehicle.
Braking force control system, device, and method
A vehicular breaking force control system includes: a plurality of actuators capable of generating a braking force for a vehicle; a coasting state detection unit configured to detect that a coasting state has been established; a target braking force calculation unit configured to calculate a target braking force on the basis of a state of the vehicle when the coasting state detection unit detects that the coasting state has been established; and a braking force distribution control unit configured to determine a distribution braking force that is a braking force to be caused to be generated by each actuator, such that the distribution braking force is equal to or less than a braking force generable by the actuator and a sum of the distribution braking forces is equal to the target braking force, and to perform control of causing each actuator to generate the distribution braking force.