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US 12,351,156 B2Granted
Apparatus and method for controlling disconnector of electric vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsWoo Cheol Cho, Won Seok Choi, Kyung Hyun Lee, Yoo Jung Han
Life of this patent
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Abstract
A disconnector control device and method for an electric vehicle are provided. The disconnector control device includes a disconnector that switches wheel driving manners and a processor that recognizes a driving condition of the vehicle. The processor also acquires at least one factor related to operation of the disconnector and operates the disconnector based on the acquired at least one factor.
Claims14
A disconnector control device for an electric vehicle, comprising:
- a disconnector configured to switch wheel driving manners;
- and
- a processor configured to:
- detect a driving condition of the vehicle including a downhill driving condition and a turning driving condition,
- when the driving condition is detected to be the downhill driving condition:
- acquire, using at least one of a navigation device and a sensing device, a plurality of first factors related to operation of the disconnector, the plurality of first factors including a road surface slope, regenerative braking torque, and a difference in wheel speed between a front wheel and a rear wheel,
- determine a first score for each of the plurality of first factors individually by referring to a first score calculation reference table in a memory;
- calculate a first operation score by summing up each of the first scores for the plurality of first factors;
- compare the first operation score to a first reference score;
- and
- operate the disconnector based on the acquired plurality of first factors by engaging the disconnector in response to determining that the calculated first operation score is greater than or equal to the first reference score;
- and
- when the driving condition is detected to be the turning driving condition,
- acquire, using at least one of the navigation device and the sensing device, a plurality of second factors,
- determine a second score for each of the plurality of second factors individually by referring to a second score calculation reference table in the memory,
- calculate a second operation score by summing up each of the second scores for the plurality of second factors, and
- compare the first operation score to a second reference score.
14 more elements
A disconnector control method for an electric vehicle, comprising:
- detecting, by a processor, a driving condition of the vehicle including a downhill driving condition and a turning driving condition;
- when the driving condition is detected to be the downhill driving condition,
- acquiring, by the processor using at least one of a navigation device and a sensing device, a plurality of first factors related to operation of a disconnector, the plurality of first factors including a road surface slope, regenerative braking torque, and a difference in wheel speed between a front wheel and a rear wheel;
- determining, by the processor, an operation mode of the disconnector based on the plurality of first factors;
- and
- operating, by the processor, the disconnector according to the determined operating mode,
- wherein the determining of the operation mode of the disconnector based on the plurality of first factors includes:
- determining, by the processor, a first score for each of the plurality of first factors individually by referring to a first score calculation reference table in a memory;
- calculating, by the processor, a first operation score by summing up each of the first scores for the plurality of first factors;
- comparing, by the processor, the calculated first operation score with a first reference score;
- and
- determining, by the processor, engagement of the disconnector when the calculated first operation score is greater than or equal to the first reference score;
- when the driving condition is detected to be the turning driving condition,
- acquiring, by the processor using at least one of the navigation device and the sensing device, a plurality of second factors,
- determining, by the processor, a second score for each of the plurality of second factors individually by referring to a second score calculation reference table in the memory;
- calculating, by the processor, a second operation score by summing up each of the second scores for the plurality of second factors, and
- comparing, by the processor, the second operation score to a second reference score.
14 more elements
Dependencies are inferred from the claim text.