B60W30/18063

Dynamic accelerator response management for a vehicle
11926331 · 2024-03-12 · ·

An apparatus includes a position circuit structured to monitor a position of an accelerator of a vehicle and a speed circuit structured to monitor a speed of the vehicle. The position corresponds with an associated response of a prime mover of the vehicle. The associated response includes at least one of a torque output and a power output of the prime mover. The apparatus further includes a response management circuit structured to receive an indication regarding the position of the accelerator and the speed of the vehicle; determine that the indication satisfies a remapping condition, the remapping condition including at least one of a creep condition, an obstacle condition, a deceleration condition, and a reverse condition; and dynamically remap the associated response of the prime mover of the vehicle based on the position of the accelerator in response to the indication satisfying the remapping condition.

Control device of vehicle

In a case where a predetermined switching operation to a state in which a traveling position is selected from a state in which another shift position of a mechanical transmission device is selected is performed by a driver, a quick engagement command to quickly engage a predetermined engagement device is performed in a state in which output of a predetermined torque is stopped, and then a rapid garage control of increasing a rotation speed of an electric motor at a rotation speed equal to or higher than a predetermined rotation speed is executed. The rapid garage control is executed in a case where a predetermined start condition is established.

Drive Control System For A Motor Vehicle Operable By Electric Motor And Having A Gear Selector
20240059159 · 2024-02-22 ·

A drive control system for a motor vehicle able to be operated by an electric motor and having a drive stage selector, an electronic accelerator pedal, a brake pedal, and an electronic control unit that is configured such that a creep function is deactivated when a first alternative automatic drive stage is selected, and that a creep function is activated when a second alternative automatic drive stage is selected. The control unit furthermore contains an appropriately programmed function module by way of which, when the creep function is activated and based on creep pilot control, the creep moment predefined thereby, in the form of a drive moment, is reduced based on a braking request from the driver, wherein a frictional braking moment is activated by the conventional wheel brake system only when the minimum possible creep moment is reached.

Vehicle control apparatus
11904687 · 2024-02-20 · ·

A vehicle control apparatus configured to control a driving motor coupled to at least one wheel includes a motor controller, a vehicle speed calculator, and a vehicle speed setter. The motor controller controls the driving motor in a constant speed driving mode. The vehicle speed calculator calculates a first vehicle speed based on a rotation angle of the driving motor. The vehicle speed setter sets, as a driving speed in the constant speed driving mode, a second vehicle speed based on the first vehicle speed and a brake operation amount. The vehicle speed setter sets zero as the second vehicle speed when the brake operation amount exceeds its threshold and the first vehicle speed falls below its threshold, and sets the first vehicle speed as the second vehicle speed when the brake operation amount does not exceed its threshold r the first vehicle speed does not fall below its.

VEHICLE TRANSMISSION BRAKE CREEP
20240051538 · 2024-02-15 ·

A launch control system for a vehicle having a powertrain includes a transmission configured to selectively perform a transbrake operation to temporarily lock the transmission to hold the vehicle stationary while an engine throttle position is increased for a vehicle launch, an actuator configured to initiate a transbrake creep operation, and a controller in signal communication with the transmission and the actuator. The controller is configured to (i) command the transmission to perform the transbrake operation, (ii) receive a signal from the actuator indicating a request to initiate the transbrake creep operation, and (iii) command the transmission to momentarily disengage the transbrake for a predetermined period of time to enable the vehicle to perform the transbrake creep operation and move the vehicle forward while maintaining the increased engine throttle position.

Adaptive Speed Controller for Motor Vehicles and Method for Adaptive Speed Control
20190351905 · 2019-11-21 · ·

The invention concerns an adaptive speed controller for a motor vehicle, with a stop-and-go system for an automatic or driver-confirmed restart following a standstill of the motor vehicle because of a vehicle ahead coming to a standstill and starting again, wherein if the motor vehicle comes to a standstill the stop-and-go system then enters a dynamic standstill state (t.sub.0 to t.sub.1) from which an automatic dynamic restart is possible, and wherein a preset period of time after the motor vehicle has come to a standstill and remains therein, the stop-and-go system enters a confirmation standstill state (>t.sub.4) from which an automatic restart is only possible after a driver's confirmation. According to the invention, the confirmation standstill state (>t.sub.4) does not immediately follow the first standstill state (t.sub.0 to t.sub.1), but with the temporal interposition of an intermediate standstill state (t.sub.1 to t.sub.4), in which an automatic restart is possible, which differs from the dynamic standstill state by different measures such as additional driver instructions, limited acceleration or the insertion of crawling phases. As a result of this, the driver is made aware of the automatic restart even after a long time at a standstill.

Auto-Calibrated Brake Control For Vehicles At Low Speeds
20190344763 · 2019-11-14 ·

Certain driver-assist features of a vehicle require incredibly precise longitudinal control of the vehicle. Achieving the precise control requires up-to-date knowledge of performance parameters of a brake system of the vehicle, which may vary extensively based on a wide set of influences outside the control of the brake system. The present disclosure proposes techniques to determine these parameters, for example, by stopping the vehicle early in maneuvering in order to study the brake performance, so that precise longitudinal control of the vehicle may be realized.

Control Method and Control Unit for a Hybrid Vehicle
20190344781 · 2019-11-14 ·

A method for operating a hybrid vehicle having a prime mover including an internal combustion engine and an electric machine, the vehicle further having a transmission connected between the prime mover and a driven end and including multiple shift elements, the vehicle further having a separating clutch connected between the internal combustion engine and the electric machine, and a starting component which is provided by a separate launch clutch or by a shift element of the transmission. The method includes monitoring a rotational speed of one of the internal combustion engine, the electric machine, the transmission, or the driven end during travel with the internal combustion engine running and the separating clutch engaged. The method further includes determining an increase in driving resistance, and decoupling the internal combustion engine when the monitored rotational speed falls below or reaches a first limiting value by disengaging the separating clutch.

Controller for Operating a Road-Coupled Hybrid Vehicle
20240123968 · 2024-04-18 ·

A control device is provided for operating a road-coupled hybrid vehicle, which is equipped with an electronic control unit, a first drive unit paired with a primary axle, and a second drive unit paired with a secondary axle. The control unit is designed to receive input variables including a specified sum target creep torque and a command to switch over from the single-axle operation to the two-axle operation with a specified all-wheel factor. The control unit sets a specified target torque for an internal combustion engine of the primary axle according to the all-wheel factor and detects the resulting actual coupling torque of the automatic transmission. If the functional module of the control unit ascertains a difference between the actual coupling torque and the sum target creep torque, the functional module specifies a corresponding target torque for an electric drive motor of the secondary axle to compensate for the difference.

Creep torque feedback to improve controllably maneuvering a vehicle

Systems and methods are provided for adjusting the creep torque to maneuver a vehicle to a target location. In various embodiments, the creep torque adjustment mode is deactivated when the driver changes the direction of travel. The change in direction also causes the parameters of the creep torque control to be reinitiated to their initial values. In various embodiments, the creep torque mode is increased from a low creep towards a target creep. If the driver engages the brakes, the input torque is set to zero, and when the driver releases the brake, the minimum creep torque is set to the value that creep torque had risen to just before the brake was applied. This allows the driver to control the acceleration and speed, by just braking. In various embodiments, the creep control controls reverse creep to aid in hooking up a vehicle to a trailer.