A turning behavior control device for a vehicle includes a yaw rate detector, a front wheel suspension, a rear wheel suspension, a brake device, a hydraulic pressure supplier, and a travel controller. The left and right front wheels of the vehicle are steered wheels and drive wheels. The travel controller includes a deviation value calculator configured to calculate a deviation between a standard yaw rate for determining a degree of understeer during turning of the vehicle and a yaw rate detected by the yaw rate detector, and a braking force controller configured to output, to the hydraulic pressure supplier, a first signal for applying braking forces to left and right front wheels in addition to a turning inner rear wheel when it is determined that the deviation calculated by the deviation value calculator exceeds a predetermined deviation reference value.

The disclosed vehicle braking device controls a hydraulic brake system (2) and a regeneration brake system (3) mounted on a vehicle (1) in accordance with an acceleration value and a brake value, and includes a first divider (11), a second divider (12), and a controller (13). The first divider (11) divides a driver demand torque set according to the accelerator value into a target coast torque and a remaining torque. The second divider (12) divides a sum of a deceleration torque set according to the brake value and the target coast torque divided by the first divider (11) into a hydraulic-brake demand torque and a regeneration-brake demand torque. The controller (13) controls the hydraulic brake system (2), using the hydraulic-brake demand torque, and controls the regeneration brake system (3), using a total regeneration brake torque calculated from the remaining torque and the regeneration-brake demand torque. This configuration can improve the feeling of operating the brake, resolving the feeling of the shortage of deceleration.

The disclosed vehicle braking device controls a hydraulic brake system (2) and a regeneration brake system (3) mounted on a vehicle (1) in accordance with an acceleration value and a brake value, and includes a first divider (11), a second divider (12), and a controller (13). The first divider (11) divides a driver demand torque set according to the accelerator value into a target coast torque and a remaining torque. The second divider (12) divides a sum of a deceleration torque set according to the brake value and the target coast torque divided by the first divider (11) into a hydraulic-brake demand torque and a regeneration-brake demand torque. The controller (13) controls the hydraulic brake system (2), using the hydraulic-brake demand torque, and controls the regeneration brake system (3), using a total regeneration brake torque calculated from the remaining torque and the regeneration-brake demand torque. This configuration can improve the feeling of operating the brake, resolving the feeling of the shortage of deceleration.

A method for operating a brake system of a motor vehicle includes actuating a first actuating device of the brake system, exerting an electromechanical braking force to decelerate the motor vehicle in an event of a fault in the hydraulic braking device and when the first actuating device is actuated, and generating the electromechanical braking force after a start of the actuation of the first actuating device for a minimum generation period and/or generating the electromechanical braking force after an end of the actuation of the first actuating device for an additional continued generation period. The brake system includes a hydraulic braking device, an electromechanical braking device, and a first actuating device, in particular a brake pedal.

A method for operating a brake system of a motor vehicle includes actuating a first actuating device of the brake system, exerting an electromechanical braking force to decelerate the motor vehicle in an event of a fault in the hydraulic braking device and when the first actuating device is actuated, and generating the electromechanical braking force after a start of the actuation of the first actuating device for a minimum generation period and/or generating the electromechanical braking force after an end of the actuation of the first actuating device for an additional continued generation period. The brake system includes a hydraulic braking device, an electromechanical braking device, and a first actuating device, in particular a brake pedal.

A motor vehicle cruise control system includes: an arithmetic unit configured to calculate a physical momentum of a traveling device for achieving a target motion of a motor vehicle that is traveling along a traveling route generated, based on an output from a vehicle exterior information acquisition device; and a device controller configured to generate, and output, an actuation control signal for the traveling device in the motor vehicle, based on an arithmetic result obtained by the arithmetic unit. Driving operation information on an operation performed by a driver is input to both the arithmetic unit and the device controller in parallel. The arithmetic unit is configured to reflect the driving operation information in a process of determining the target motion. The device controller is configured to reflect the driving operation information in the control of the actuation of the traveling device.

A control device may be configured for responding to failure for ensuring the stability of a vehicle by switching from a two-wheel-drive mode to a four-wheel-drive mode when detecting failure of the brake system in a two-wheel-drive mode.

A control device may be configured for responding to failure for ensuring the stability of a vehicle by switching from a two-wheel-drive mode to a four-wheel-drive mode when detecting failure of the brake system in a two-wheel-drive mode.

The present invention obtains a controller and a control method capable of achieving appropriate cornering during cruise control of a straddle-type vehicle.

In the controller and the control method according to the present invention, during the cruise control, in which acceleration/deceleration of the straddle-type vehicle is automatically controlled without relying on an accelerating/decelerating operation by a driver, a vehicle speed of the straddle-type vehicle is restricted to be equal to or lower than an upper limit speed at the time of turning, an exit of a curved road is detected on the basis of a predicted route of the straddle-type vehicle, and a magnitude of the deceleration of the decelerated straddle-type vehicle is reduced at a time point before the straddle-type vehicle reaches the exit.

The present invention obtains a controller and a control method capable of achieving appropriate cornering during cruise control of a straddle-type vehicle.

In the controller and the control method according to the present invention, during the cruise control, in which acceleration/deceleration of the straddle-type vehicle is automatically controlled without relying on an accelerating/decelerating operation by a driver, an entry of a curved road is detected on the basis of a predicted route of the straddle-type vehicle, and the straddle-type vehicle is decelerated at a time point before the straddle-type vehicle reaches the entry.