Regenerative control system of a vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTakashi Koyama
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Abstract
A regenerative control system of a vehicle is constructed such that in a system which generates electrical energy of a low voltage suitable for a low voltage system circuit and electrical energy of a high voltage suitable for the high voltage system circuit in an alternate manner by making use of kinetic energy of a vehicle when the vehicle is in a deceleration running state, a ratio between a period of time to generate the low voltage electrical energy and a period of time to generate the high voltage electrical energy is decided in accordance with a deceleration required of the vehicle, and a power generation voltage is duty controlled according to the ratio thus decided.
Claims17
A regenerative control system of a vehicle comprising:
- a low voltage system circuit including a low voltage battery;
- a high voltage system circuit including a high voltage battery of which a rated voltage is higher than that of said low voltage battery;
- a power generation unit that generates electrical energy of a low voltage suitable for said low voltage system circuit or electrical energy of a high voltage suitable for said high voltage system circuit by making use of kinetic energy of the vehicle;
- and
- a control unit that controls said power generation unit in such a manner that electric power generation is carried out while changing over a generation voltage between said low voltage and said high voltage in an alternate manner when the vehicle is in a deceleration running state, and at the same time duty controls a ratio between a period of time during which said low voltage electrical energy is generated, and a period of time during which said high voltage electrical energy is generated.
Dependencies are inferred from the claim text.