Methods and systems are provided for control of a combustion engine in a vehicle. In operation, at least one future speed profile for an actual speed of the vehicle is simulated during a road section ahead based on information about the road section and on knowledge that coasting with the combustion engine shut down will be applied during the road section. Subsequently, based on the future speed profile, a starting point in time is determined, when the combustion engine will need to be started for forward driving the vehicle and/or to brake the vehicle. Subsequently, a starting point brought forward in time is determined based on the need for a forward driving or braking force arising, where the starting point brought forward in time precedes the starting point in time. Subsequently, the combustion engine is controlled to be started at the starting point brought forward in time.

A number of variations are disclosed including a computer program product and method of modifying brake-to-steer brake pressure commands, based on brake temperature, in real time as well as to create temperature dependent powertrain control and temperature dependent brake cooling.

Provided is a control apparatus for vehicle that improves operability for a driver. A control apparatus for vehicle switches the vehicle to a freewheeling mode in which power generated by an engine is not transmitted to drive shafts. The control apparatus for vehicle includes: a motor; a battery; friction brake equipment that generates frictional braking force on the vehicle; a temperature sensor that acquires temperature of the friction brake equipment; and a determiner that assesses the temperature of the friction brake equipment acquired by the temperature sensor. The friction brake equipment generates the friction braking force when the battery is fully charged. The freewheeling mode is deactivated in a case where the temperature of the friction brake equipment exceeds a predetermined temperature while the battery is fully charged and the vehicle is in the freewheeling mode.

A vehicle includes a control system, a sensing system that senses an environment of the vehicle, and a propulsion system, a braking system, and a steering system that are operated by the control system to navigate the vehicle according to the sensing system and without direct human control. The propulsion system and the braking system are operated by the control system to cooperatively decelerate the vehicle. The braking system includes an inboard friction brake that is associated with one or more wheels of the vehicle and does not form unsprung mass of the vehicle.

A cruise control system for a vehicle includes a controller configured to maintain a speed of the vehicle about a setpoint, and in response to predicted brake capacity falling below a threshold based on predicted brake fade, reduce the setpoint and downshift a transmission of the vehicle to increase negative torque to reduce brake fade. Also, a powertrain of a vehicle includes an engine, an automatic transmission coupled with the engine, and a controller. The controller is configured to maintain a speed of the vehicle about a setpoint, and in response to a predicted brake capacity falling below a threshold based on predicted brake fade, reduce the setpoint and downshift the transmission to increase a negative torque.

A device and a method for controlling vehicle speed in a vehicle equipped with cruise control when the vehicle is travelling downhill. The method involves driving a vehicle downhill with the cruise control set to a first brake set speed value; detecting a current vehicle speed; applying a brake torque using at least one auxiliary brake to maintain the first brake set speed, which brake torque is dependent on a currently engaged gear; detecting a manual request for a downshift from a currently engaged gear to a lower gear, in order to decrease vehicle speed; and determining if a downshift is permissible at the current vehicle speed. If a control unit determines that a downshift is not permissible, then the control unit is automatically arranged to apply a brake torque using at least a vehicle service brake to retard the vehicle speed; to retard the vehicle from a current, first vehicle speed to a lower, second vehicle speed at which a downshift to a lower gear is permissible; and to perform a downshift to a lower gear when the second vehicle speed is reached. The cruise control brake set speed is set to a second brake set speed that is lower than the first cruise control brake set speed value; and a brake torque using at least the auxiliary brake is applied if a detected current vehicle speed exceeds the second brake set speed.

Methods and systems are provided for control of a combustion engine in a vehicle. In operation, at least one future speed profile for an actual speed of the vehicle is simulated during a road section ahead based on information about the road section and on knowledge that coasting with the combustion engine shut down will be applied during the road section. Subsequently, based on the future speed profile, a starting point in time is determined, when the combustion engine will need to be started for forward driving the vehicle and/or to brake the vehicle. Subsequently, a starting point brought forward in time is determined based on the need for a forward driving or braking force arising, where the starting point brought forward in time precedes the starting point in time. Subsequently, the combustion engine is controlled to be started at the starting point brought forward in time.

A control arrangement and a method for controlling travelling speed of a vehicle using a vehicle speed control system. The method comprises a step of, when the vehicle speed control system is expected to apply braking power using a service brake system and at least one of the one or more auxiliary brake systems of the vehicle while the vehicle travels an upcoming road section, predicting a future temperature profile for the service brake system based on a predetermined temperature model for the service brake system. The method further comprises a step of, when the predicted temperature profile demonstrates that the service brake system will reach a temperature above an upper temperature threshold, and optionally a first predefined criterion and/or a second predefined criterion is/are fulfilled, controlling the service brake system to reduce the vehicle speed.

A control system for an electrified vehicle includes a friction brake system configured to apply a frictional force to a driveline system of the electrified vehicle to decelerate the electrified vehicle and a controller configured to detect an upcoming downhill grade and, in response to detecting the upcoming downhill grade, predict a thermal parameter of the friction brake system during the upcoming downhill grade and control enablement/disablement of a power dissipation mode of the electrified vehicle when the predicted thermal parameter exceeds a thermal parameter threshold corresponding to overheating of the friction brake system, wherein the power dissipation mode includes intentionally dissipating at least some of the electrified vehicle's potential energy using a set of power dissipation components of the electrified vehicle.

A mobile body control device includes, an acceleration acquirer configured to acquire an actual acceleration of a mobile body, a gradient acquirer configured to acquire a gradient of a travel route, a preceding mobile body detector configured to detect a preceding mobile body, and a following controller configured to execute following control to calculate a target acceleration. The following controller is configured to start suppression control to calculate a corrected target acceleration by reducing an absolute value of the target acceleration on condition that a downward gradient of the travel route is equal to or more than a prescribed gradient determination value and a difference between the target acceleration and the actual acceleration is equal to or less than a prescribed difference determination value. While the following controller is executing the suppression control, a propulsion device and a brake device are controlled based on the corrected target acceleration.