US 12,459,483 B2
Oil leak detecting method of brake system and detecting system thereof
Yeonben Ko, Gyeonggi-do (KR)
Assigned to HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed on Mar. 15, 2023, as Appl. No. 18/121,645.
Claims priority of application No. 10-2022-0032286 (KR), filed on Mar. 15, 2022.
Prior Publication US 2023/0294658 A1, Sep. 21, 2023
Int. Cl. B60T 17/22 (2006.01); B60T 13/68 (2006.01)
CPC B60T 17/221 (2013.01) [B60T 13/686 (2013.01); B60T 17/225 (2013.01); B60T 2270/403 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An oil leak detecting method comprising:
closing a first hydraulic circuit and monitoring an amount of a leak of brake oil in a second hydraulic circuit;
closing the second hydraulic circuit and monitoring an amount of a leak of brake oil in the first hydraulic circuit;
comparing a leak flow rate of brake oil from the first hydraulic circuit with a leak flow rate of brake oil from the second hydraulic circuit when each of the amount of leak of brake oil in the first hydraulic circuit and the amount of leak of brake oil in the second hydraulic circuit is not greater than a preset value; and
determining where brake oil leaks from among the first hydraulic circuit and the second hydraulic circuit based on a comparison result of the leak flow rates,
wherein the first hydraulic circuit controls a flow of hydraulic pressure transmitted to two wheel cylinders, and
wherein the second hydraulic circuit controls a flow of hydraulic pressure transmitted to other two wheel cylinders.