Patent classifications
B60T2250/04
Vehicle operation safety model compliance measurement
System and techniques for vehicle operation safety model (VOSM) compliance measurement are described herein. A subject vehicle is tested in a vehicle following scenario against VOSM parameter compliance. The test measures the subject vehicle activity during phases of the following scenario in which a lead vehicle slows and produces log data and calculations that form the basis of a VOSM compliance measurement.
METHOD OF CONTROLLING BRAKING OF A VEHICLE
A method of controlling braking of a vehicle is provided to minimize heat generation in a brake system at a time of braking the vehicle while securing an appropriate braking force. The method includes determining whether an inclination condition for a road satisfies a preset condition, and when the inclination condition for the road satisfies the preset condition, performing cyclic brake control of alternately braking wheels of two or more different axles of the vehicle.
Vehicle braking control device
Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.
Braking system for test vehicle
An overrunable test vehicle including an electronically-controlled anti-slip braking system for reducing wheel slip during rapid deceleration comprising: a chassis, at least one electric motor connected to a first axle, a hydraulic braking system connected with the chassis and at least a second axle, a rotational speed sensor for determining a rotational speed of a connected axle, a ground speed sensor, and a controller connected with the electric motor, the hydraulic braking system, the rotational speed sensor, and the ground speed sensor. The controller is configured to calculate a difference between the rotational speed of the axle and the ground speed of the chassis to determine a slip threshold of the wheels, actuate the hydraulic brake system to apply a first stopping force, control at least one motor parameter of the electric motor to apply a second stopping force. The first and second stopping forces combined are less than the slip threshold of the wheels such that the chassis rapidly decelerates free of a wheel slip condition.
System and method for sensing brake judder in vehicle
A system and method for detecting brake judder in a vehicle may include storing information related to determining whether judder was generated when a vehicle was braked, and facilitating easy recognition of a vehicle in which judder was generated, on the basis of stored information without performing methods such as a separate driving reproduction test and a disc thickness measurement test when maintaining later.
Electronic parking brake control and override system
An electronic parking brake control system and method for controlling a parking brake of a vehicle. The system includes an electronic parking brake variable switch configured to produce an application signal based on an amount or an amount of time the switch is pulled upward or pushed downward. The system also includes an indicator configured to indicate an amount of application of the parking brake based on the application signal. The system also includes an electronic brake unit coupled to the electronic parking brake variable switch. The electronic brake unit is configured to receive the application signal, and transmit a rear brake signal to a plurality of rear brake actuators to apply a plurality of rear brakes based on the application signal when a speed of the vehicle is below a threshold speed or the vehicle is in a low gear.
BRAKING CONTROL DEVICE FOR VEHICLE
A braking control device includes: a wheel deceleration deriving section that derives decrease rates of wheel speed detection values as wheel deceleration calculation values; an average value deriving section that derives an average value of the wheel deceleration calculation values of wheels FL, FR, RL, and RR as a wheel deceleration average value; a determination section that determines, based on the wheel deceleration average value and an anteroposterior deceleration detection value, whether or not a slip increase state has been occurring for a determination time or longer; and a detection section that detects occurrence of cascade lock when it is determined that the slip increase state has been occurring for the determination time or longer during vehicle braking.
METHOD FOR CONTROLLING PROPULSION OF A HEAVY-DUTY VEHICLE
A method for controlling propulsion of a heavy-duty vehicle includes. configuring a nominal shaft slip of the drive shaft in dependence of a desired longitudinal wheel force to be generated by the driven axle, wherein a shaft slip is indicative of a difference between a current vehicle velocity and a vehicle velocity corresponding to the rotation speed of the drive shaft, obtaining a rotation speed of the left wheel and a rotation speed of the right wheel, as function of a current shaft slip of the driven axle, estimating a peak shaft slip value associated with an open differential peak longitudinal force of the driven axle, based on the current shaft slip and on the corresponding obtained speeds of the left and right wheels, and controlling propulsion of the heavy-duty vehicle unit by setting the current shaft slip of the drive shaft based on the configured nominal shaft slip adjusted in dependence of the estimated peak shaft slip value.
AUTONOMOUS EMERGENCY BRAKING SYSTEM AND METHOD
The present disclosure relates to an autonomous emergency braking system and a method. More specifically, the autonomous emergency braking system according to the present disclosure includes: a sensor that includes a gravity sensor detecting a force of gravity applied to a host vehicle and a vehicle-speed sensor detecting a vehicle speed of the host vehicle; an inclination determiner that determines an inclination of a road surface on which the host vehicle is traveling based on the vehicle speed of the host vehicle and the force of gravity; and a controller that adjusts an AEB warning time based on the determined inclination of the road surface.
VEHICLE BRAKE CONTROL METHOD, DEVICE, AND STORAGE MEDIUM
A vehicle braking control method. The method portion includes: when a vehicle is in a preset parking state, monitoring state signal of a vehicle system in real time, the vehicle system comprises a service brake system, a reversing assistance system, and a plurality of electronic parking brake systems; determining whether the vehicle meets a preset fault condition according to the state signals of the service brake system, the electric parking brake system and reversing assistance system; activating a non-faulty electronic parking brake system to control the vehicle to park if it is determined that the vehicle meets the preset fault condition. The present disclosure ensures the safety of a vehicle during low-speed remote parking when the vehicle is in a preset parking state, and solves the problem of potential safety hazards caused by having no matching control solution. Also provided are a corresponding device and a storage medium.