Patent classifications
B60T2201/03
SYSTEM AND METHOD FOR PREDICTING WEAR PROGRESSION FOR VEHICLE TIRES
A system and method are provided for estimating progression in vehicle tire wear. A tread depth is stored at a first (e.g., initial or unworn) stage for a given tire, along with a first set of modal frequencies for the tire. At a later (e.g., worn) stage, for example in concert with a controlled excitation of tire structural modes, a second set of corresponding modal frequencies are sensed for the tire, and a tire wear status of the tire is determined at the second stage based on a calculated frequency shift between at least one corresponding modal frequency from each of the first and second sets. In one example, an initial mass of the tire is stored, and a change in mass is calculated based on the calculated frequency shift. Alternatively, a correlation of modal frequency shift may be performed with respect to tread depth for a given tire.
ELECTROHYDRAULIC BRAKE APPARATUS
An electrohydraulic brake apparatus includes: a reservoir; a stroke sensor; a plurality of wheel brake assemblies; a main master cylinder; an electric booster; an electronic stability control system; and an electronic control unit configured to control the ESC system so that a fluid pressure supplied to the ESC system brakes only part of the plurality of wheel brake assemblies when the pedaling amount is less than or equal to a first reference, and to control the ESC system so that the fluid pressure supplied to the ESC system brakes all of the plurality of wheels brake assemblies when the pedaling amount is greater than the first reference.
BRAKE CONTROL APPARATUS AND METHOD OF CONTROLLING THE SAME
A brake control apparatus includes a hydraulic pressure supply device configured to provide a hydraulic pressure to a wheel cylinder of a vehicle; a flow path extending from the hydraulic pressure supply device to the wheel cylinder; at least one valve configured to open or close the flow path; and a controller electrically connected to the hydraulic pressure supply device and the at least one valve. The controller may be configured to control the hydraulic pressure supply device to supply the hydraulic pressure to the wheel cylinder through the flow path, and in response to a change in a gear position of a transmission of the vehicle, to control at least one of the hydraulic pressure supply device and the at least one valve to maintain a hydraulic pressure of the wheel cylinder or a hydraulic pressure of the flow path for a first reference time after the change in the gear position.
Brake supplement assist control
Methods, systems, and apparatus for a brake assist control system. The brake assist control system is for a vehicle. The brake assist control system includes a first sensor configured to detect driver awareness. The brake assist control system includes an electronic control unit. The electronic control unit is coupled to the first sensor. The electronic control unit is configured to determine that a brake pedal and an accelerator pedal are in a released position. The electronic control unit is configured to determine that there is vehicle movement. The electronic control unit is configured to determine that a driver of the vehicle is unaware of the vehicle movement based on the driver awareness. The electronic control unit is configured to reduce or eliminate the vehicle movement.
ELECTRICALLY ACTIVATABLE ACTUATING UNIT FOR A MOTOR VEHICLE BRAKE SYSTEM, BRAKE BOOSTER HAVING SUCH AN ELECTRICALLY ACTIVATABLE ACTUATING UNIT AND MOTOR VEHICLE BRAKE SYSTEM HAVING SUCH A BRAKE BOOSTER
The present disclosure relates to an electrically activatable actuating unit (106) for a motor vehicle brake system (1000), having a housing body (122) and an actuating member (124) arranged in a recess (150) of the housing body (122), wherein the actuating member (124) is coupleable to a brake pedal at a first end and coupleable to a motor vehicle brake (400) at a second, opposite end. The housing body (122) and the actuating member (124) are arranged to be displaceable in a braking direction to actuate the motor vehicle brake (400). The electrically activatable actuating unit (106) furthermore comprises a damping element (180, 180A, 180B), which is arranged in the recess (150) of the housing body (122) such that it abuts frictionally against an outer wall of the actuating member (124) by means of an inner circumferential face (184) and abuts frictionally against an inner wall (170) of the housing body (122) by means of an outer, opposite circumferential face (186), which inner wall delimits the recess (150).
ASSEMBLY FOR AN ELECTROMECHANICAL BRAKE BOOSTER OF A VEHICLE BRAKING SYSTEM, BRAKE BOOSTER WITH SUCH AN ASSEMBLY, AND VEHICLE BRAKING SYSTEM WITH SUCH AN ASSEMBLY
The present disclosure concerns an assembly (100) for an electromechanical brake booster (200) of a vehicle braking system (1000). The assembly comprises an actuating member (120) which can be loaded with a first actuating force generated by means of a brake pedal, and a housing (160, 160a) in which the actuating member (120) is received, wherein the housing (160, 160a) can be loaded with a second actuating force generated electromechanically. Furthermore, the assembly (100) comprises an output element (150) extending away from the housing (160, 160a). Said element is configured for transmitting the first and second actuating forces to a brake cylinder (300) of the vehicle braking system (1000). Furthermore, an elastically deformable transmission element (140) is provided which is arranged to transmit force in a brake application direction between the actuating member (120) and the housing (160, 160a) on one side and the output element (150) on the other, and is configured to receive the first actuating force from the actuating member (120) and the second actuating force from the housing (160, 160a) and transmit these to the output element (150). According to the present disclosure, a support (160, 160a) that is rigidly arranged on the housing is provided for a portion of the output element (150), wherein the supported or supportable portion of the output element (150) is arranged between the support (180, 180a) on one side and the transmission element (140) on the other.
SYSTEM-ON-CHIPS AND METHODS OF CONTROLLING RESET OF SYSTEM-ON-CHIPS
A system-on-chip (SoC) includes a processor, a system interconnect (a first bus) connected to the processor, a physical layer protocol (PHY) intellectual property (IP) block, a second bus connected to the processor, and a reset controller connected to the first bus and the second bus. The processor includes a plurality of central processing unit (CPU) cores. The PHY IP block, connected to the first bus, includes a plurality of PHY IPs including physical layers and is connected to external devices. The reset controller detects an abnormal state of the processor based on a signal from the processor, or an absence of a signal from the processor. The reset controller applies a reset signal to the PHY IP block in response to the detected abnormal state. The PHY IP block outputs a corresponding preset data to respective one of the external devices in response to the reset signal during a reset period.
Method for controlling travel of vehicle, and device for controlling travel of vehicle
A pedestrian crosswalk through which a subject vehicle is expected to pass is specified as a target pedestrian crosswalk. Road configurations close to the target pedestrian crosswalk are detected. Traffic lines of moving objects crossing the target pedestrian crosswalk are estimated on the basis of the road configurations. An area including the estimated traffic lines is set as a detection area of a detector detecting objects around the subject vehicle. The moving objects are detected by the detector in the detection area. Travel of the subject vehicle is controlled on the basis of a detection result of the detector.
Driver Assistance Method in which a Vehicle Performs a Driving Manoeuvre Automatically, and Closed-Loop and Open-Loop Control Device for a Braking Device of a Vehicle
The disclosure relates to a driver assistance method, in which a vehicle performs a driving manoeuvre automatically, and a braking device, in particular a parking brake, is at least partially actuated during the performance of the driving manoeuvre so that a braking action is constantly exerted on the wheels of at least one axle so that a drive of the vehicle operates counter to the braking action of the braking device in order to move the vehicle. According to the disclosure, during the driving manoeuvre at least one operating parameter which is related to an undesired increase in the braking action exerted on at least one wheel is detected and evaluated, and a braking action on at least one wheel is reduced in accordance with the result of said evaluation.
Method for activating a parking brake of a motor vehicle, and system for controlling a parking brake of a motor vehicle
A method for activating a parking brake of a motor vehicle, wherein the parking brake is activated automatically if the motor vehicle is at a standstill or its ignition is switched off. The motor vehicle and/or the environment is detected subsequent to the automatic activation of the parking brake, and that said current situation is compared to stored situations of the motor vehicle and/or the environment, for which a rolling capability of the motor vehicle at a standstill and/or with its ignition switched off has been designated.