Power generation control device of hybrid vehicle
View Patent ↗A hybrid vehicle has an engine and a motor-generator as power sources and has an inter-vehicle distance detection unit to detect an inter-vehicle distance between the vehicle and a preceding vehicle. A power generation amount is restricted according to the inter-vehicle distance in a power generation travel mode in which power of the engine drives the motor-generator while being transferred to the drive wheels. Output torque of an engine drivetrain is reduced according to the restricted power generation amount.
1. A power generation control device of a hybrid vehicle including, as power sources, an engine and a motor having an electric power generation function, the power generation control device comprising:
an inter-vehicle distance detector configured to detect an inter-vehicle distance between the vehicle and a preceding vehicle; and
a controller configured to restrict a power generation amount from the motor by lowering an engine load in relation to a reduction of the inter-vehicle distance, during a power generation travel where a power of the engine drives the motor while being transferred to a drive wheel and before regenerative braking caused by a braking operation for deceleration is activated.
2. The power generation control device of a hybrid vehicle according to claim 1 , wherein the engine load is reduced by lowering engine torque.
3. The power generation control device of the hybrid vehicle according to claim 2 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
4. The power generation control device of the hybrid vehicle according to claim 1 , wherein the engine load is reduced by adjusting a transmission gear ratio.
5. The power generation control device of the hybrid vehicle according to claim 4 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
6. The power generation control device of the hybrid vehicle according to claim 1 , wherein the engine load is reduced by lowering engine torque and adjusting a transmission gear ratio.
7. The power generation control device of the hybrid vehicle according to claim 6 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
8. The power generation control device of the hybrid vehicle according to claim 1 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
9. A power generation control device of a hybrid vehicle including, as power sources, an engine and a motor having an electric power generation function, the power generation control device comprising:
an inter-vehicle distance detector configured to detect an inter-vehicle distance between the vehicle and a preceding vehicle;
a controller configured to restrict a power generation amount from the motor by lowering an engine load as the inter-vehicle distance reduces, during a power generation travel in which regenerative braking is not activated yet and power of the engine drives the motor while being transferred to a drive wheel; and
an inter-vehicle distance change amount detector configured to detect an inter-vehicle distance change amount between the vehicle and the preceding vehicle, wherein the power generation amount is restricted according to the inter-vehicle distance and the inter-vehicle distance change amount.
10. The power generation control device of a hybrid vehicle according to claim 9 , wherein the engine load is reduced by lowering engine torque.
11. The power generation control device of the hybrid vehicle according to claim 10 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
12. The power generation control device of the hybrid vehicle according to claim 9 , wherein the engine load is reduced by adjusting a transmission gear ratio.
13. The power generation control device of the hybrid vehicle according to claim 12 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
14. The power generation control device of the hybrid vehicle according to claim 9 , wherein the engine load is reduced by lowering engine torque and adjusting a transmission gear ratio.
15. The power generation control device of the hybrid vehicle according to claim 14 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.
16. The power generation control device of the hybrid vehicle according to claim 9 , even during the power generation travel, the restriction of power generation amount is prohibited if the state of charge of a battery is equal to or lower than a predetermined value.