B60T2250/00

METHODS AND APPARATUS TO EXTEND BRAKE LIFE CYCLE

Methods, apparatus, systems, and articles of manufacture to extend brake life cycle are disclosed herein. An example vehicle includes a first brake associated with a first wheel of the vehicle, a second brake associated with a second wheel of the vehicle, memory, and a brake controller to execute instructions to detect a first parking event, determine, via a first sensor, a condition of the vehicle, access, from the memory, a record of a second parking event including an activation of the first brake, the second parking event preceding the first parking event, and in response to determining the condition satisfies a threshold, engage the second brake without engaging the first brake.

VEHICLE CONTROL DEVICE
20230150464 · 2023-05-18 · ·

The vehicle control device: controls the drive device and the braking device such that an actual acceleration representing an actual acceleration of the vehicle coincides with a target acceleration for driving the vehicle so that the vehicle stops at a preset target stop position; acquires the target acceleration every time a predetermined time elapses, and sets the target acceleration to a value such that the magnitude of the change amount does not exceed the threshold change amount when the magnitude of the change amount representing the difference between the target acceleration and the previous target acceleration exceeds the threshold change amount; and sets the threshold change amount to a larger value than when the emergency condition is not satisfied in a case where a predetermined emergency condition is satisfied in a case where a driving force or a braking force larger than in a normal state is required.

Tire stiffness estimation and road friction estimation
11650133 · 2023-05-16 · ·

The disclosed invention makes use of slip related values to calculate friction related values and tire stiffness related values and feeds back an estimated tire stiffness relates value or a calculated friction related as a basis for further calculations. In particular, the disclosure relates to methods, apparatuses and computer program products to achieve the mentioned objective.

Classifying an actuation of an electric parking brake of a vehicle

A system and method for classifying an actuation of an electric parking brake of a vehicle is presented. In one example, the system includes a sensor configured to sense a vehicle parameter, an output device, a memory including an electric parking brake usage profile, and an electronic controller configured to receive the electric parking brake usage profile, receive the vehicle parameter, detect an actuation of the electric parking brake, and in response to detecting an actuation of the electric parking brake: determine a reason for the actuation of the electric parking brake, determine an attribute of the vehicle based on the vehicle parameter, classify the actuation of the electric parking brake based on a numerical value of the attribute and/or the reason for the actuation of the electric parking brake, update the electric parking brake usage profile based on the classification, and output the updated parking brake usage profile.

Apparatus and Method for Determining a Road Friction
20230182698 · 2023-06-15 ·

An apparatus determines a road friction of a commercial vehicle. The commercial vehicle has a first axle and a second axle, a load distribution mechanism for changing a load on the first axle or on the second axle, and a slip sensor for determining a slip value for at least one wheel on the first axle or on the second axle. The apparatus includes an evaluation unit configured to control the load distribution mechanism to change the load of the first axle or on second axle, determine a change in the slip value in response to the change of the load, and evaluate the road friction based on the change in the slip value.

SYSTEM AND METHOD FOR USE IN CONNECTION WITH A WHEEL TORQUE GENERATING COMPONENT IN A HEAVY-DUTY VEHICLE
20230182710 · 2023-06-15 ·

A system for use in connection with a wheel torque generating component in a heavy-duty vehicle. The system comprises a fluid conduit, a compressor configured to provide a pressurized air flow through the fluid conduit, a mass flow adding arrangement configured to add a fluid to the pressurized air flow in the fluid conduit, thereby increasing the mass flow of the pressurized air flow, and a flow directing device arranged downstream of the mass flow adding arrangement and configured to direct the pressurized air flow, including the added fluid, from the fluid conduit to the wheel torque generating component so as to control the temperature of the wheel torque generating component. The invention also relates to a method for use in connection with a wheel torque generating component in a heavy-duty vehicle.

SYSTEM AND METHOD FOR USE IN CONNECTION WITH A WHEEL TORQUE GENERATING COMPONENT IN A HEAVY-DUTY VEHICLE
20230182697 · 2023-06-15 ·

A system for use in connection with a wheel torque generating component in a heavy-duty vehicle, comprising a fluid conduit, a flow creating device configured to provide a pressurized air flow through the fluid conduit, a flow directing device enabling the pressurized air flow to be directed from the fluid conduit to the wheel torque generating component so as to control the temperature of the wheel torque generating component, and a control unit configured to compare a determined first temperature of the pressurized air flow with a determined second temperature of the wheel torque generating component, wherein the control unit is configured to, based on the comparison of the first temperature and the second temperature, selectively control the flow directing device to direct the pressurized air flow to the wheel torque generating component. The invention also relates to a method.

ASSISTED DRIVING METHOD AND APPARATUS, ELECTRONIC APPARATUS, VEHICLE-MOUNTED SYSTEM, AND STORAGE MEDIUM
20230166742 · 2023-06-01 ·

The present disclosure provides an assisted driving method, including: monitoring, in response to that a driving speed of a vehicle is less than or equal to a preset speed and a steering wheel direction is deflected within a first preset time period, an instantaneous oil consumption value of the vehicle; determining whether the instantaneous oil consumption value of the vehicle reaches a first preset reference value within a second preset time period; and sending a reminding message in response to that the instantaneous oil consumption value of the vehicle reaches the first preset reference value within the second preset time period. The present disclosure further provides an assisted driving apparatus, an electronic apparatus, a vehicle-mounted system, and a storage medium.

Electrically actuated mechanical park brake system
11260842 · 2022-03-01 · ·

A park brake system for adjusting a tension in a brake cable that is coupled to a park brake. The park brake system can include a driver that is communicatively coupled to a microcontroller, and an actuator that is rotatably displaceable by operation of the driver. An equalizer assembly can be linearly displaced along the rotating actuator to adjust a tension in the brake cable. The microcontroller can monitor a current being drawn by the driver as the driver is operated, and generate instructions to cease operation of the driver upon the current reaching a predetermined current threshold that corresponds a maximum force that is to be applied by the park brake. The microcontroller can also, when the park brake is being released from a set position, count pulses outputted by an encoder in connection with determining whether the park brake has reached a running clearance position.

Systems and Methods for Emergency Braking in Autonomous Vehicles

The present disclosure is directed towards a system for implementing emergency braking. In particular, a computing system can obtain current trajectory data from a motion planning system of an autonomous vehicle. The computing system can determine whether an emergency braking flag within the current trajectory data is set to true based at least in part on the current trajectory data. The computing system can, in response to determining that the emergency braking flag within the current trajectory data is set to true, change a current braking mode of the autonomous vehicle from a first braking mode to a second braking mode. While in the second braking mode, the computing system can set a current acceleration value to the second maximum stopping rate. The computing system can transmit the current acceleration value for implementation by the autonomous vehicle.