Hybrid vehicle and control method therefor
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiroki Endo
Life of this patent
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Abstract
A hybrid vehicle includes a controller that executes control such that a second motor is regeneratively driven within the range of input and output limits of a high-voltage battery that exchanges electric power with the second motor that outputs power for traveling without running an engine using a first motor when charging electric power is smaller than the input limit of the high-voltage battery and an EV traveling priority mode is set. The invention also relates to a control method for the hybrid vehicle.
Claims8
A hybrid vehicle comprising:
- an engine configured to output power for traveling;
- a first motor configured to run the engine;
- a second motor configured to output power for traveling;
- a battery configured to exchange electric power with the first motor and the second motor;
- and
- a controller configured to control the engine, the first motor, and the second motor such that a requested braking force acts on the hybrid vehicle when the second motor is regeneratively driven,
- the controller being configured to, when regenerative electric power from the second motor exceeds a maximum charging electric power and priority is given to a motor traveling over a hybrid traveling, control the engine, the first motor, and the second motor such that the second motor is regeneratively driven within a range of the maximum charging electric power while rotation of the engine is limited to a level lower than a level when the regenerative electric power from the second motor does not exceed the maximum charging electric power,
- wherein the maximum charging electric power is a maximum value of electric power that can be used to charge the battery, operation of the engine is stopped and the hybrid vehicle travels by using power from the second motor in the motor traveling, the hybrid vehicle travels by using power from the engine and the power from the second motor in the hybrid traveling.
A hybrid vehicle comprising:
- an engine configured to output power for traveling;
- a first motor configured to run the engine;
- a second motor configured to output power for traveling;
- a battery configured to exchange electric power with the first motor and the second motor;
- and
- control means for controlling the engine, the first motor, and the second motor such that a requested braking force acts on the hybrid vehicle when the second motor is regeneratively driven,
- the control means controlling the engine, the first motor, and the second motor, when regenerative electric power from the second motor exceeds a maximum charging electric power and priority is given to a motor traveling over a hybrid traveling, such that the second motor is regeneratively driven within a range of the maximum charging electric power while rotation of the engine is limited to a level lower than a level when the regenerative electric power from the second motor does not exceed the maximum charging electric power,
- wherein the maximum charging electric power is a maximum value of electric power that can be used to charge the battery, operation of the engine is stopped and the hybrid vehicle travels by using power from the second motor in the motor traveling, the hybrid vehicle travels by using power from the engine and the power from the second motor in the hybrid traveling.
A control method for a hybrid vehicle including an engine configured to output power for traveling, a first motor configured to run the engine, a second motor configured to output power for traveling, a battery configured to exchange electric power with the first motor and the second motor, and a controller,
- the control method, executed by the controller, comprising:
- controlling the engine, the first motor, and the second motor such that a requested braking force acts on the hybrid vehicle when the second motor is regeneratively driven;
- and
- controlling the engine, the first motor, and the second motor, when regenerative electric power from the second motor exceeds a maximum charging electric power and priority is given to a motor traveling over a hybrid traveling, such that the second motor is regeneratively driven within a range of the maximum charging electric power while rotation of the engine is limited to a level lower than a level when the regenerative electric power from the second motor does not exceed the maximum charging electric power,
- wherein the maximum charging electric power is a maximum value of electric power that can be used to charge the battery, operation of the engine is stopped and the hybrid vehicle travels by using power from the second motor in the motor traveling, the hybrid vehicle travels by using power from the engine and the power from the second motor in the hybrid traveling.
Dependencies are inferred from the claim text.