Control system for hybrid vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorSatoshi Tsuda
Life of this patent
Estimating the term…
Abstract
A control system for a hybrid vehicle configured to reduce an exhaust gas during deceleration of the vehicle, and to protect a motor and a battery. A control mode of the engine may be selected from: a low-power mode in which the hybrid vehicle is decelerated by reducing a torque and a power of the engine at a predetermined rate while generating the brake torque by the motor; and a high-power mode in which the hybrid vehicle is decelerated by reducing the torque and the power of the engine at a rate slower than the predetermined rate of the low-power mode while generating the brake torque by the motor.
Claims9
A control system for a hybrid vehicle comprising:
- an engine;
- a first motor that controls a speed of the engine;
- a second motor that applies a brake torque to drive wheels when regenerating energy;
- and
- an electric storage device that is electrically connected to the first motor and the second motor,
- wherein the control system is configured to decelerate the hybrid vehicle by controlling the second motor to generate the brake torque while controlling the first motor to reduce a speed of the engine,
- the control system comprises a controller that controls the engine,
- the controller is configured to select a control mode of the engine from:
- a low-power mode in which the hybrid vehicle is decelerated in response to a decelerating operation by reducing a torque and a power of the engine at a predetermined rate while generating the brake torque by the second motor;
- and
- a high-power mode in which the hybrid vehicle is decelerated in response to the decelerating operation by reducing the torque and the power of the engine at a rate slower than the predetermined rate of the low-power mode while generating the brake torque by the second motor.
Dependencies are inferred from the claim text.