MICRO LEAKAGE DETECTING DEVICE OF SUSPENSION DEVICE AND METHOD FOR DETECTING MICRO LEAKAGE

• US 20150102921A1
• Filed: 03/21/2014
• Published: 04/16/2015
• Est. Priority Date: 10/10/2013
• Status: Abandoned Application

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: KIM, Young Il
• Application Number:
  US14/222,427
• Publication Number:
  US 20150102921A1
• Time in Patent Office: Days
• US Class Current: 340/450
• CPC Class Codes: B60G 17/0185 for failure detection
• CPC Class Codes: B60G 2202/152 Pneumatic spring
• CPC Class Codes: B60G 2400/204 Vehicle speed
• CPC Class Codes: B60G 2400/252 vertical
• CPC Class Codes: B60G 2500/02 Supply or exhaust flow rates; Pump operation
• CPC Class Codes: B60G 2500/30 Height or ground clearance
• CPC Class Codes: B60G 2600/044 Alarm means
• CPC Class Codes: G01L 19/0672 Leakage or rupture protection or detection
• CPC Class Codes: G01L 19/12 Alarms or signals
• CPC Class Codes: G01M 17/04 Suspension or damping

Abstract

A micro leakage detecting device of a suspension device includes a detecting unit, a driving state determining unit that checks whether or not a vehicle is driving when it is checked in the detecting unit that the vehicle-height correcting control occurs, a vehicle-height increasing control checking unit that checks whether or not the vehicle-height correcting control is control for increasing a vehicle height when it is checked in the driving state determining unit that the vehicle is driving, a micro leakage determining unit that updates vehicle-height correcting control information according to a vehicle-height correcting type when it is checked in the vehicle-height increasing control checking unit that the the vehicle-height correcting control is the control for increasing the vehicle height, and determines whether or not micro leakage occurs when the vehicle-height correcting control information is detected one or more times, and a warning unit that warns a driver.

Claims

1. A micro leakage detecting device of a suspension device, comprising:

a detecting unit that checks whether or not vehicle-height correcting control occurs;

a driving state determining unit that checks whether or not a vehicle is driving when it is checked in the detecting unit that the vehicle-height correcting control occurs;

a vehicle-height increasing control checking unit that checks whether or not the vehicle-height correcting control is control for increasing a vehicle height when it is checked in the driving state determining unit that the vehicle is driving;

a micro leakage determining unit that updates vehicle-height correcting control information according to a vehicle-height correcting type when it is checked in the vehicle-height increasing control checking unit that the the vehicle-height correcting control is the control for increasing the vehicle height, and determines whether or not micro leakage occurs when the vehicle-height correcting control information is detected one or more times; and

a warning unit that warns a driver when it is determined in the micro leakage determining unit that the micro leakage occurs.

2. The micro leakage detecting device of a suspension device of claim 1, wherein the micro leakage determining unit initializes the vehicle-height correcting control information when it is checked that the the vehicle-height correcting control is not the control for increasing the vehicle height.

3. The micro leakage detecting device of a suspension device of claim 1, wherein the vehicle-height correcting type is at least any one of a first type that increases a vehicle height of a front left wheel region, a second type that increases a vehicle height of a front right wheel region, a third type that increases a vehicle height of a rear left wheel region, a fourth type that increases a vehicle height of a rear right wheel region, a fifth type that increases a vehicle height of a region toward front wheels with a longitudinal direction center of the vehicle as its center, a sixth type that increases a vehicle height of a region toward rear wheels with the longitudinal direction center of the vehicle as its center, and a seventh type that increases a vehicle height of a region toward the front wheels or a vehicle height of a region toward the rear wheels with an imaginary diagonal reference line as its center that connects the front left wheel region and the rear right wheel region or the front right wheel region and the rear left wheel region.

4. A method for detecting micro leakage of a suspension device, the method comprising:

a) checking whether or not vehicle-height correcting control occurs;

b) checking whether or not a vehicle is driving when it is checked that the vehicle-height correcting control occurs;

c) checking whether or not the vehicle-height correcting control is control for increasing a vehicle height when it is checked that the vehicle is driving;

d) updating vehicle-height correcting control information according to a vehicle-height correcting type when it is checked that the vehicle-height correcting control is the control for increasing the vehicle height;

e) determining whether or not micro leakage occurs when the vehicle-height correcting control information is detected one or more times; and

f) warning a driver when it is determined in step e) that the micro leakage occurs.

5. The method for detecting micro leakage of a suspension device of claim 4, further comprising:

initializing the vehicle-height correcting control information when it is checked in step c) that the vehicle-height correcting control is not the control for increasing the vehicle height.

6. The method for detecting micro leakage of a suspension device of claim 4, wherein the vehicle-height correcting type is at least any one of a first type that increases a vehicle height of a front left wheel region, a second type that increases a vehicle height of a front right wheel region, a third type that increases a vehicle height of a rear left wheel region, a fourth type that increases a vehicle height of a rear right wheel region, a fifth type that increases a vehicle height of a region toward front wheels with a longitudinal direction center of a vehicle as its center, a sixth type that increases a vehicle height of a region toward rear wheels with the longitudinal direction center of the vehicle as its center, and a seventh type that increases a vehicle height of a region toward the front wheels or a vehicle height of a region toward the rear wheels with an imaginary diagonal reference line as its center that connects the front left wheel region and the rear right wheel region or the front right wheel region and the rear left wheel region.