A vehicle speed control system for a vehicle having a plurality of wheels, the vehicle speed control system comprising: means for receiving a user input of a target speed at which the vehicle is intended to travel; and means for commanding application of torque to one or more wheels of the vehicle, wherein the system is configured such that when it is required to accelerate the vehicle to achieve the target speed and the system detects a wheel slip event, the system is operable temporarily to suspend further acceleration of the vehicle.

A speed control system operable to control a motor vehicle to operate in accordance with a set-speed value, the control means being operable to allow a user to adjust the set-speed value by user actuation of a vehicle brake control or a vehicle accelerator control.

A vehicle brake hydraulic pressure control apparatus includes, as a controller, acceleration acquiring section for acquiring an output value of an acceleration sensor detecting a front-rear direction acceleration of a vehicle, limiting section for limiting the magnitude of the output value acquired by the acceleration acquiring section within a predetermined limit value, a filter (control acceleration calculation section) limiting a change of a value output by the limiting section in a predetermined direction, and holding section for determining a holding pressure according to a value output by the filter and, based on the holding pressure, holding the braking force.

A brake control system for a motor vehicle having a plurality of wheels, brakes for applying a braking effort to one or more of the wheels, and a movement sensor for detecting movement of the vehicle. The system comprises a brake actuator for actuating the brakes to supply a braking effort and a brake controller for controlling the brake actuator. The brake controller is configured to determine an acceleration of the vehicle based on movement detected by the movement sensor and to ensure that the brake actuator supplies a braking effort if the determined acceleration exceeds a set acceleration limit.

This brake ECU executes vehicle downhill control for adjusting the braking force to be applied to a vehicle by actuating a brake actuator such that the vehicle body speed does not exceed a target speed. Also, in cases where the accelerator pedal is being operated in a state where the vehicle downhill control is being executed, the brake ECU changes the target speed such that, the longer the operation duration which is the duration for which the accelerator is operated, the higher the target speed.

Described herein are devices, systems, and methods for managing the power consumption of an automotive vehicle, and thereby for optimizing the power consumption of the vehicle. The devices and systems for managing the power consumption of the vehicle typically include power management logic that can calculate an applied power for the vehicle engine based on information provided from the external environment of the vehicle, the operational status of the vehicle, one or more command inputs from a driver, and one or more operational parameters of the vehicle.

A method for controlling the speed of vehicle is provided. The method comprises providing a memory device configured to store a plurality of predefined set-speeds therein. The method further comprises selecting a desired set-speed from the plurality of predefined set-speeds stored in the memory device. The method may further comprise determining whether the selected set-speed is appropriate based on one or more conditions. The method may still further comprise causing the vehicle to operate in accordance with the selected set-speed when it is determined that the set-speed is appropriate. A system comprising a memory device configured to store a plurality of predefined set-speeds, and electronic control unit configured to select a desired one of the predefined set-speeds stored in the memory is also provided.

A system for managing braking torque in a machine uses a first braking system, a second braking system that is independent of the first braking system and a controller that monitors activity in both braking systems. The controller selectively reduces torque in the first braking system as torque in the second braking system increases to limit undesired effects of possible over-braking.

A method for operating a speed control system of a vehicle is provided. The method comprises detecting an occurrence of a slip event, of a step encounter event, or of both events at a leading wheel of the vehicle. The method also comprises predicting that the occurrence of the detected event(s) will occur at a following wheel of the vehicle. The method yet further comprises automatically controlling vehicle speed, vehicle acceleration, or both vehicle speed and acceleration in response to the detection, the prediction, or both the detection and prediction. A speed control system comprising an electronic control unit (ECU) configured to perform the above-described methodology is also provided.

A system for regulating speed of a vehicle along a road surface, the system including: at least one controller; at least one throttle sensor in communication with the at least one controller; at least one brake sensor in communication with the at least one controller; at least one gear sensor in communication with the at least one controller; at least one speed sensor in communication with the at least one controller; at least one motor in communication with the at least one controller; and at least one energy source in communication with the at least one controller and the at least one motor; wherein the at least one controller further includes a proportional integral and derivative controller; and at least one retardive braking system in communication with the at least one controller and controlled by the proportional integral and derivative controller.