Brake system and controlling method thereof
AssigneeHl Mando Corporation
InventorKyungran Cho
Life of this patent
Estimating the term…
Abstract
A brake system may include: a first motor providing a driving force to a first electronic parking brake; a first drive circuit and a second drive circuit each independently connected to the first motor, and driving the first motor; a first switch circuit connected between the first motor and the first drive circuit; a second switch circuit connected between the first motor and the second drive circuit; a first micro controller unit electrically connected to the first drive circuit; and a second micro controller unit electrically connected to the second drive circuit.
Claims20
A brake system comprising:
- a first motor operably associated with a first electronic parking brake;
- a first drive circuit and a second drive circuit each connected to the first motor to drive the first motor;
- a first switch circuit connected between the first motor and the first drive circuit;
- a second switch circuit connected between the first motor and the second drive circuit;
- a first micro controller unit connected to the first drive circuit and configured to control the first drive circuit;
- and
- a second micro controller unit connected to the second drive circuit and configured to control the second drive circuit,
- wherein:
- the first micro controller unit is configured to control the first switch circuit to open the first drive circuit in response to short-circuit in at least one switch included in the first drive circuit, and
- the second micro controller unit is configured to operate in a state in which the first micro controller unit does not control the first drive circuit.
A method of controlling a brake system, comprising:
- controlling, by a first micro controller unit, a first drive circuit to drive a first motor operably associated with a first electronic parking brake;
- controlling, by the first micro controller unit, a first switch circuit, connected between the first motor and the first drive circuit, to open the first drive circuit in response to short-circuit in at least one switch included in the first drive circuit;
- and
- controlling, by the second micro controller unit, a second drive circuit to drive the first motor when the first micro controller unit does not control the first drive circuit,
- wherein:
- each of the first drive circuit and the second drive circuit is connected to the first motor,
- the first micro controller unit is connected to the first drive circuit,
- the second micro controller unit is connected to the second drive circuit, and
- a second switch circuit is connected between the first motor and the second drive circuit.
Dependencies are inferred from the claim text.