[특허]Regenerative braking method

Regenerative braking method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60T-013/74
출원번호	US-0723442 (1996-10-07)
발명자 / 주소	Bodie Mark Olen Majeed Kamal Naif
출원인 / 주소	General Motors Corporation
대리인 / 주소	Simon
인용정보	피인용 횟수 : 59 인용 특허 : 0

초록 ▼

In a vehicle with a first set of first and second wheels coupled to an electric drive system capable of providing regenerative braking and a second set of third and fourth wheels, wherein the vehicle dynamically adjusts a brake proportioning between the first and second sets responsive to a determined wheel speed difference between the first and second sets, the improvement comprising a regenerative braking control method according to the steps of: measuring first, second, third and fourth speeds of the first, second, third and fourth wheels; for each wheel of one of the first and second sets, determining a set-off value inversely relational to a commanded brake torque and a wheel deceleration; determining modified wheel speeds for each wheel of said one of the first and second sets responsive to the wheel speeds and the set-off values; and determining the wheel speed difference between the first and second sets responsive to the modified wheels speeds of said one of the first and second sets and the wheel speeds of the other of the first and second sets, wherein the dynamic adjusting of brake proportioning between the first and second sets increases brake torque load on the first and second wheels, increasing an amount of braking achieved regeneratively.

대표청구항 ▼

[ We claim:] [1.] In a vehicle with a first set of first and second wheels coupled to an electric drive system capable of providing regenerative braking and a second set of third and fourth wheels, wherein the vehicle dynamically adjusts a brake proportioning between the first and second sets responsive to a determined wheel speed difference between the first and second sets, the improvement comprising a regenerative braking control method according to the steps of:measuring first, second, third and fourth speeds of the first, second, third and fourth wheels;normalizing the first, second, third and fourth speeds;for each wheel of one of the first and second sets, determining a wheel speed set-off value inversely relational to a commanded brake torque and a wheel deceleration;determining modified normalized wheel speeds for each wheel of said one of the first and second sets responsive to the normalized wheel speeds and the wheel-speed set-off values; anddetermining the wheel speed difference between the first and second sets responsive to the modified normalized wheels speeds of said one of the first and second sets and the normalized wheel speeds of the other of the first and second sets, whereinthe dynamic adjusting of brake proportioning between the first and second sets responsive to the determined wheel speed difference is responsive to the speed set-off values to increase brake torque load on the first and second wheels, increasing an amount of braking achieved regeneratively.

이 특허를 인용한 특허 (59)

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