B60T2201/02

METHODS AND SYSTEMS FOR VEHICLE PATH PLANNING
20230099853 · 2023-03-30 ·

There is provided a method for operating a vehicle having an automated driving system (ADS) and a fallback stop feature. The method includes obtaining sensor data and localization data including information about a surrounding environment of the vehicle, and determining a plurality of candidate paths for a prediction time horizon within a drivable area in the surrounding environment of the vehicle based on the sensor data and the localization data. Further, the method includes determining an expected trajectory of a target vehicle located in the surrounding environment of the vehicle for the prediction time horizon based on the obtained sensor data and localization data, and determining, for each candidate path, an overlap cost parameter for an overlap between the target vehicle's expected trajectory and a set of stop positions of the vehicle based on predicted executions of the fallback stop feature within the prediction time horizon.

VEHICLE CONTROLLER AND VEHICLE CONTROL METHOD

A vehicle controller sets an upper limit request value related to an upper limit of a longitudinal acceleration of a vehicle, a lower limit request value related to a lower limit of the longitudinal acceleration, and an acceleration request value related to the longitudinal acceleration that corresponds to an amount of the operation of the vehicle. The vehicle controller sets a first arbitration request value to a greater one of the lower limit request value and the acceleration request value. The vehicle controller sets a second arbitration request value to a smaller one of the first arbitration request value and the upper limit request value. The vehicle controller sets, to a value that corresponds to the second arbitration request value, a command value sent to an actuator that operates to adjust the traveling speed.

VEHICLE MOTION CONTROLLER

A vehicle motion controller includes a feedback controlling unit that executes feedback control in which a difference between a target acceleration corresponding to a request value and an actual acceleration of a vehicle is an input, thereby calculating a control amount used to reduce the difference, a request outputting unit that calculates a request longitudinal force based on the control amount and outputs the request longitudinal force to the driving and braking devices, the request longitudinal force controlling the driving and braking devices, and a determining unit that, in a case where a driver of the vehicle is operating a braking operation member, obtains a braking command value and determines that operation interference by the driver has occurred when the braking command value is less than the request value. The feedback controlling unit prohibits the control amount from increasing in a case where the operation interference has occurred.

Electro-mechanical park lock actuator

An electro-mechanical park lock actuator includes a shaft and a circuit board. The shaft is arranged for connecting to a transmission park pawl. The circuit board includes a first non-contact inductive position sensor integrated circuit, a first trace electrically connected to the first non-contact inductive position sensor integrated circuit for determining an angular position of the shaft, and an electrical connector for connecting the circuit board to an external master controller. In some example embodiments, the electro-mechanical park lock actuator includes an electric motor drivingly connected to the shaft, and a transmission arranged in a torque path between the electric motor and the shaft.

Speed control system for road equipment
11479249 · 2022-10-25 · ·

The invention involves a low speed control system and method for automatically regulating the speed of work vehicles or equipment and, more particularly, vehicles that apply, remove or modify roadways or road markings. The system includes a controller, a speed display, at least one rotary encoder or the like, and one or more Eddy current or mechanical brakes for inhibiting motion of the vehicle at the operator's control. The brakes may be pneumatic, spring operated, Eddy current, or hydraulic that are controlled in response to feedback from the at least one rotary encoder for compliance with the preset speed on the speed display. In another embodiment, a throttle control is also provided.

Adaptive cruise control

A system includes a computer having a processor and a memory storing instructions executable by the processor to determine a braking distance based on a gap distance between a primary vehicle and a second vehicle in an adjacent lane, and based on a speed of the second vehicle in the adjacent lane. The instructions include instructions to actuate a braking system of the primary vehicle when the primary vehicle is the braking distance from a third vehicle in a same lane as the primary vehicle.

Braking control apparatus with adjustable power regeneration in accordance with relative distance from a preceding vehicle

A braking control apparatus to be installed an electric vehicle includes an acceleration and deceleration operation member, a controller, and a recognizer. The acceleration and deceleration operation member receives an acceleration request in accordance with an operation amount in a first direction from a neutral position, and receive a deceleration request in accordance with an operation amount in a second direction from the neutral position. The controller controls an amount of power regenerated by a rotary electric machine driven by wheels in accordance with the operation amount in the second direction. The recognizer recognizes a preceding vehicle traveling ahead of the electric vehicle. Upon detection of the preceding vehicle at a relative distance from the electric vehicle that is equal to or less than a threshold, the controller performs braking suppression control to decrease the amount of power regenerated in accordance with the operation amount in the second direction.

Hydraulic brake system

In a hydraulic brake system, when a main power supply is in an abnormal condition in which it cannot supply electric power to a pump motor, etc., the pump motor is operated with electric power supplied from an auxiliary power supply, irrespective of the presence of a braking request. Thus, when the main power supply is in the abnormal condition, the number of times inrush current flows is reduced. As a result, the voltage of the auxiliary power supply is less likely to be lower than an operation minimum voltage, and the hydraulic brake system is less likely to be unable to be operated.

Vehicle assist system
11597361 · 2023-03-07 · ·

A method of braking a host vehicle traveling behind a second vehicle includes acquiring visual images of the second vehicle and determining an actual deceleration of the second vehicle based on the visual images. Non-visible light emitted by the second vehicle is detected. A commanded deceleration of the second vehicle is determined based on the detected light. A first signal is produced indicative of the actual deceleration. A second signal is produced indicative of the commanded deceleration. Braking of the host vehicle is initiated in response to at least one of the first and second signals.

ELECTRIFIED VEHICLE AND METHOD OF BRAKING CONTROL FOR THE SAME
20230117473 · 2023-04-20 ·

The present disclosure relates to an electrified vehicle capable of handling a situation where there may be an insufficient brake force during long-time braking by applying regenerative braking and to a braking compensation control method of the electric vehicle. The braking compensation control method includes determining whether a preset compensation control entry condition may be satisfied, determining a compensation brake torque for assisting in following a speed of a leading vehicle traveling ahead, and outputting the compensation brake torque through a motor when the compensation control entry condition may be satisfied.