Control device for vehicle and control method for vehicle
AssigneeNissan Motor Co., Ltd.
InventorsHiroyuki Komatsu, Ken Ito, Takashi Nakajima, Yuji Katsumata, Akira Sawada
Life of this patent
Estimating the term…
Abstract
The device that generates the friction braking force to decelerate the vehicle estimates the disturbance torque acting on the vehicle. When the accelerator operation amount is equal to or less than the predetermined value and the vehicle is just before the stop of the vehicle, the control device for vehicle causes the friction braking amount to converge to the friction braking amount to the value decided on the basis of the disturbance torque estimated value Td in conjunction with the reduction in the motor rotation speed (speed parameter) proportionate to the traveling speed of the vehicle.
Claims10
A control device for vehicle that generates a friction braking force, via friction brakes, to decelerate a vehicle, the control device for vehicle comprising:
- a vehicle speed sensor configured to detect a speed parameter proportionate to a traveling speed of the vehicle;
- an accelerator position sensor configured to detect an accelerator operation amount;
- and
- a controller configured to control the friction brakes;
- and
- wherein the controller is further configured to:
- estimate a disturbance torque acting on the vehicle based on disturbance factors;
- electrically adjust a friction braking amount;
- and
- control the friction braking amount to converge to a value decided on a basis of the disturbance torque in conjunction with a reduction in the speed parameter when the accelerator operation amount is equal to or less than a predetermined value and the vehicle is just before a stop of the vehicle.
A control method for vehicle that generates a friction braking force, via friction brakes, to decelerate a vehicle, the control method for vehicle comprising:
- detecting a speed parameter proportionate to a traveling speed of the vehicle;
- detecting an accelerator operation amount;
- estimating, via a controller, a disturbance torque acting on the vehicle based on disturbance factors;
- and
- controlling, via the controller, a friction braking amount, to control the friction brakes, to converge to the disturbance torque in conjunction with a reduction in the speed parameter when the accelerator operation amount is equal to or less than a predetermined value and the vehicle is just before a stop of the vehicle.
Dependencies are inferred from the claim text.