The invention has a purpose of obtaining a brake hydraulic pressure controller capable of attaching a coil casing to a base body with a simple configuration, a motorcycle brake system, and a manufacturing method of a brake hydraulic pressure controller. In the brake hydraulic pressure controller, at least one projected portion is provided in the coil casing, at least one hole portion is provided in a surface of the base body to which the coil casing is attached, the coil casing is attached to the base body in a state where the projected portion is inserted in the hole portion, the projected portion includes a hook portion that bulges in a direction to cross a projected direction of said projected portion, the coil casing is held by the base body when a part of the base body abuts a surface of a base-side region that is a region near a base of the projected portion with a top of a bulge of the hook portion being a reference.

The present invention obtains a control system and a control method capable of appropriately suppressing rear lift-up of a straddle-type vehicle.

In the control system and the control method according to the present invention, damping forces of suspensions and a braking force generated to the straddle-type vehicle are controlled. Braking force adjustment control is executed to adjust the braking force generated to the straddle-type vehicle so as to suppress the rear lift-up that causes a rear wheel of the straddle-type vehicle to lift off from the ground, and initiation timing of the braking force adjustment control is controlled by using a physical quantity to which states of the suspensions are reflected.

A brake control device includes: a decrease determination unit that determines whether a requested braking force for a vehicle is decreasing; and a brake control unit which, on the condition that the decrease determination unit determines that the requested braking force is decreasing during deceleration of the vehicle, executes ratio change decrease control of reducing the braking force of the vehicle according to the decrease of the requested braking force, while making a braking force distribution ratio smaller than a reference braking force distribution ratio. The reference braking force distribution ratio is the braking force distribution ratio at a time point when the requested braking force starts to decrease.

A brake control device includes: a decrease determination unit that determines whether a requested braking force for a vehicle is decreasing; and a brake control unit which, on the condition that the decrease determination unit determines that the requested braking force is decreasing during deceleration of the vehicle, executes ratio change decrease control of reducing the braking force of the vehicle according to the decrease of the requested braking force, while making a braking force distribution ratio smaller than a reference braking force distribution ratio. The reference braking force distribution ratio is the braking force distribution ratio at a time point when the requested braking force starts to decrease.

Methods and system for vehicle control. The methods and systems determining actuator commands data based on a vehicle stability and motion control function. The vehicle stability and motion control function having planned trajectory data, current vehicle position data and current vehicle heading data as inputs, having the actuator commands data as an output and utilizing a model predicting vehicle motion including predicting vehicle heading data and predicting vehicle position data. The actuator commands data includes steering and propulsion commands. The actuator commands data includes differential braking commands for each brake of the vehicle to correct for any differential between the planned vehicle heading and the current vehicle heading data or the predicted vehicle heading data. The methods and systems output the actuator commands data to the actuator system.

A trailer control valve for a tractor includes a body defining a supply port and first and second delivery ports. The supply port is configured for fluid communication with a fluid source on the tractor. The first and second delivery ports are configured for fluid communication with glad-hand connectors through which fluid is supplied from the tractor to a trailer. A pressure sensing solenoid receives fluid signal from each of the first and second deliver ports and selectively passes fluid signal therefrom to a pressure sensor as a function of a brake control signal received by a controller that controls the pressure sensing solenoid.

A remote start-up method of a manual transmission vehicle is provided. The method includes a parking braking force-associated remote start-up control that remotely starts-up an inclined parking vehicle parked on a ramp by confirming a situation where the parking braking force is maintained by a braking hydraulic pressure control of an electronic stability control (ESC) system in a remote start-up controller.

Methods and system for vehicle control. The methods and systems determining actuator commands data based on a vehicle stability and motion control function. The vehicle stability and motion control function having planned trajectory data, current vehicle position data and current vehicle heading data as inputs, having the actuator commands data as an output and utilizing a model predicting vehicle motion including predicting vehicle heading data and predicting vehicle position data. The actuator commands data includes steering and propulsion commands. The actuator commands data includes differential braking commands for each brake of the vehicle to correct for any differential between the planned vehicle heading and the current vehicle heading data or the predicted vehicle heading data. The methods and systems output the actuator commands data to the actuator system.

A vehicle includes a powerplant, such as an engine, configured to power front and rear wheels, and a controller. The controller is programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels to warm those tires, and subsequently brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel to warm those tires.

A vehicle includes a powerplant, such as an engine, configured to power front and rear wheels, and a controller. The controller is programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels to warm those tires, and subsequently brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel to warm those tires.