Hybrid electric vehicle and charge control method therefor
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSung Hoon Choi, Young Un Kim, Yu Hyun Sung, Jeong Min Shin, Dong Jin Nam
Life of this patent
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Abstract
A hybrid electric vehicle (HEV) includes: a battery, a hybrid starter generator (HSG) starting an engine, and a controller that identifies a state of charge (SOC) of the battery upon when a reverse gear input is detected, determines whether to charge the battery by the HSG based on the identified SOC of the battery. In particular, the controller controls battery charging in a charging control mode based on a SOC level of the battery when it is determined that the HSG needs to charge the battery.
Claims15
A hybrid electric vehicle (HEV) comprising:
- a battery;
- a hybrid starter generator (HSG) configured to start an engine;
- and
- a controller configured to:
- when a reverse gear input is detected, identify a state of charge (SOC) of the battery,
- when the identified SOC of the battery is less than a first reference value, determine that the battery needs to be charged by the HSG, and
- when the HSG charges the battery, control battery charging in a charging control mode based on a SOC level of the battery,
- wherein when the identified SOC of the battery is less than a second reference value, the controller is configured to determine that the charging control mode is a maximum charging mode.
A charging control method of a hybrid electric vehicle (HEV), the method comprising:
- identifying, by a controller, a state of charge (SOC) of a battery when a reverse gear input is detected;
- when the identified SOC of the battery is less than a first reference value, determining, by the controller, that the battery needs to be charged by a hybrid starter generator (HSG);
- and
- when the HSG charges the battery, controlling, by the controller, battery charging in a charging control mode based on a SOC level of the battery,
- wherein controlling the battery charging includes:
- when the SOC of the battery is less than a second reference value, charging the battery in a maximum charging mode.
Dependencies are inferred from the claim text.