Patent classifications
B60W2510/182
Method for braking a vehicle and brake control system for a vehicle
In a method for braking a vehicle with the aid of at least one electric machine, operated as a generator, of the vehicle, a torque generated by the electric machine is controlled by a damping control function in order to reduce a periodic deflection of a drive train, coupled to a rotor shaft of the electric machine, relative to the rotor shaft. Furthermore, a braking request signal representing a target braking torque is detected, a deactivation condition for deactivating the damping control function is identified on the basis of the braking request signal, the damping control function is deactivated when a deactivation condition is identified, a braking torque is generated based on the braking request signal by operating the electric machine as a generator, a reactivation condition for reactivating the damping control function is identified during the process of generating the braking torque, and the damping control function is reactivated when the reactivation condition is identified.
METHOD FOR CONTROLLING A BRAKE SYSTEM, BRAKE CONTROLLER, AND VEHICLE
A method is for controlling a brake system having at least two modulators. A pressure can be modulated via the respective modulator and provided at a connection. The method includes: determining if there is a leak; localizing a detected leak by controlling a modulator with a test signal to change the pressure, and determining a deviation between a target value specified as a function of the signal and an actual value assigned to the connection; if a threshold is exceeded, the line has a leak; controlling a modulator so a flow connection is interrupted between the leaky line and the pressure supply from which the pressure for the connection is modulated; and at a connection to which no line with a located leak is connected, an adjusted pressure is provided, dependent on the braking demand and a deceleration loss from the interruption of the flow connection to the leaky line.
Method for controlling a change in the direction of travel of a working vehicle between forward travel and rearward travel or vice versa
A method is disclosed for controlling a change in the direction of travel of a working vehicle between forward travel and rearward travel or vice versa. The working vehicle has an electronically controllable hydrostatic travel drive, a power-operated brake system with at least one electronically controllable brake circuit, and an electronic brake-control unit for controlling the travel drive and the brake circuit. While the vehicle is traveling in a first direction, a change in the direction of travel is triggered by a switchover of the hydrostatic travel drive by means of an assigned manual operating element. To reduce the mechanical loading, the deceleration of the working vehicle can be assisted by automatically actuating the brakes of the electronically controllable brake circuit, where these brakes are actuated by being triggered by the switchover of the operating element and are released by the time the vehicle comes to a standstill.
CONTROL DEVICE FOR VEHICLE, STORAGE MEDIUM, AND CONTROL METHOD
A control device for a vehicle, a storage medium, and a control method are provided. The control device includes processing circuitry configured to receive a motion request of a vehicle from each of driver-assistance systems. The vehicle includes the driver-assistance systems. The processing circuitry is configured to select one of the received motion requests as an arbitration result, and output, based on the arbitration result, an instruction signal that is used to control an actuator of the vehicle, and vary the instruction signal over a predetermined period of time when the instruction signal switches as the motion request switches.
Support system
A display control device for a support system includes a number-of-charging-lights determination unit for determining the number of charging lights, which corresponds to state-of-charge which ranges from maximum state-of-charge of a driving battery to a charge threshold and is assigned to a plurality of segments; a number-of-output-lights determination unit for determining the number of output lights, which corresponds to a difference, where a requested output ranging from an output that can be output to an output threshold is assigned to the plurality of segments; and a number-of-lights instruction unit for instructing a display device to light up the least number of segments of the number of charging lights or the number of output lights, when an EV priority mode is selected.
Methods and systems and non-transitory computers for monitoring driving behavior of a vehicle
A method for monitoring driving behavior of a vehicle includes obtaining first information including values related to driving operations of a vehicle based on sensors and obtaining a geographical location or a vehicle type of the vehicle. The method also includes extracting second information including values related to operations of vehicles associated with the vehicle type of the vehicle or the geographical location of the vehicle and determining whether there is a difference between the first information and the second information. The method further includes instructing the vehicle to adjust driving operations in response to determining that there is the difference between the first information and the second information.
HEURISTIC MULTI-CORNER PERFORMANCE MONITORING OF BRAKE ACTUATOR OUTPUT FOR DECENTRALIZED VEHICLE BRAKE SYSTEMS
A method of operating a vehicle includes receiving brake sensor data indicative of measured actuator outputs of a decentralized brake system's brake actuators. For each brake actuator, a vehicle controller calculates: a normalized corner output using the measured actuator output and a commanded target output for that brake actuator, and a weighted average using the normalized corner output of that brake actuator and a vehicle-calibrated weight value determined from the vehicle's current speed and steering angle. The controller calculates an actuator error percentage as an absolute value of a mathematical difference between the weighted averages of the brake actuators, and detects an actuator fault when the actuator error percentage exceeds a vehicle-calibrated fault deviation threshold determined from the vehicle's current speed and steering angle. Responsive to the error percentage exceeding the fault deviation threshold, the controller commands the brake system to execute a brake action to remediate the actuator fault.
METHOD FOR CONTROLLING A DRIVE TRAIN AND DRIVE TRAIN
A method is provided for controlling a drive train (12) of a motor vehicle (10) having an electric drive motor (16, 17), a wheel (26, 27) driven by the electric drive motor (16), and an anti-lock braking system (30) for preventing the wheel from locking (26, 27). The method includes detecting an impending control intervention of the anti-lock braking system (30) and disconnecting a torque-transmitting connection from the electric drive motor (16) to the wheel (26, 27) when an impending control intervention of the anti-lock braking system (30) is detected. Also disclosed are a control device (60), a drive train (12), and a motor vehicle (10) configured to carry out such a method.
Method and driving dynamics system for controlling a starting process of a vehicle
A method for controlling a starting process of a vehicle includes activating a control sequence and setting a control sequence signal, defining a maximum engine drive torque, and detecting a drive request for a starting process. The method further includes, in response to the drive request, controlling a clutch-gearbox unit with an engagement process duration, controlling wheel slip of driven wheels by determining wheel speeds of the driven wheels and at least setting an output drive torque at the output shaft, and redefining the maximum engine drive torque depending on the wheel slip and a driving speed. The method also includes deactivating the control sequence and resetting the control sequence signal when limit values are reached.
Apparatus and method for estimating steering angle based on differential braking, and computer-readable storage medium storing program for performing the method
An apparatus and method, and a non-transitory computer-readable storage medium storing a program for performing the method estimates a steering angle based on differential braking. The apparatus may include a memory configured to store an estimation model having at least one coefficient and defining the relationship between a differential braking force of a vehicle and a steering angle of free-rolling front wheels of the vehicle; and a processor configured to input test data comprising a plurality of differential braking forces and steering angles generated when the plurality of differential braking forces are applied to the estimation model, respectively, and determine the at least one coefficient of the estimation model.