Controller for vehicle and control method for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshitaka Niimi, Eiji Murase
Life of this patent
Estimating the term…
Abstract
A controller for a vehicle includes a controlling unit. In a case in which the target engine torque is less than or equal to a threshold, the controlling unit controls the engine such that the torque of the engine becomes equal to the target engine torque, and controls a motor-generator such that the torque of the motor-generator becomes equal to the target motor torque. Also, in a case in which the target engine torque is greater than the threshold, the controlling unit controls the engine such that the torque of the engine becomes less than or equal to the threshold, and controls the motor-generator such that the torque of the motor-generator increases.
Claims8
A controller for a vehicle, wherein the vehicle includes:
- an engine as a drive source;
- a motor-generator as a drive source;
- and a battery that supplies power to the motor-generator, the controller comprising:
- circuitry configured to:
- calculate a target engine torque based on an accelerator operated amount, the target engine torque being a target value of a torque of the engine;
- calculate a target motor torque based on the accelerator operated amount, the target motor torque being a target value of a torque of the motor-generator;
- calculate a booming noise permissible value based on an index value indicating a traveling state of the vehicle, the booming noise permissible value being an upper limit of a booming noise, the index value including a speed of the vehicle;
- calculate a threshold, the threshold being an upper limit of the torque of the engine used to limit the booming noise to the booming noise permissible value or less;
- in a case in which the target engine torque is less than or equal to the threshold, control the engine such that the torque of the engine becomes equal to the target engine torque, and control the motor-generator such that the torque of the motor-generator becomes equal to the target motor torque;
- in a case in which the target engine torque is greater than the threshold, control the engine such that the torque of the engine becomes less than or equal to the threshold, and control the motor-generator such that the torque of the motor-generator becomes greater than the target motor torque;
- and
- cause the booming noise permissible value to be greater in a case in which the speed of the vehicle is low than in a case in which the speed of the vehicle is high.
A control method for a vehicle, wherein the vehicle includes:
- an engine as a drive source;
- a motor-generator as a drive source;
- and a battery that supplies power to the motor-generator, the control method comprising:
- calculating a target engine torque based on an accelerator operated amount, the target engine torque being a target value of a torque of the engine;
- calculating a target motor torque based on the accelerator operated amount, the target motor torque being a target value of a torque of the motor-generator;
- calculating a booming noise permissible value based on an index value indicating a traveling state of the vehicle, the booming noise permissible value being an upper limit of a booming noise, the index value including a speed of the vehicle;
- calculating a threshold, the threshold being an upper limit of the torque of the engine used to limit the booming noise to the booming noise permissible value or less;
- in a case in which the target engine torque is less than or equal to the threshold, controlling the engine such that the torque of the engine becomes equal to the target engine torque, and controlling the motor-generator such that the torque of the motor-generator becomes equal to the target motor torque;
- in a case in which the target engine torque is greater than the threshold, controlling the engine such that the torque of the engine becomes less than or equal to the threshold, and controlling the motor-generator such that the torque of the motor-generator becomes greater than the target motor torque;
- and
- causing the booming noise permissible value to be greater in a case in which the speed is low than in a case in which the speed is high.
Dependencies are inferred from the claim text.