CLUTCH OPERATING SYSTEM

• US 20150142272A1
• Filed: 09/12/2014
• Published: 05/21/2015
• Est. Priority Date: 11/20/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: KIM, Bum Jun, KIM, Eun Sik
• Granted Patent: US 9,469,282 B2
• Time in Patent Office: Days
• US Class Current: 701/48
• CPC Class Codes: B60T 7/12 for automatic initiation; for initiation not subject to will of driver or passenger limiting speed of vehicles other than rail vehicles B60K31/00
• CPC Class Codes: B60T 7/122 for locking of reverse movement
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/182 including control of parking brakes
• CPC Class Codes: B60W 2540/14 Clutch pedal position
• CPC Class Codes: B60Y 2300/436 Control of engine ignition
• CPC Class Codes: F16D 2025/081 Hydraulic devices that initiate movement of pistons in slave cylinders for actuating clutches, i.e. master cylinders
• CPC Class Codes: F16D 2300/18 Sensors; Details or arrangements thereof
• CPC Class Codes: F16D 25/08 with fluid-actuated member not rotating with a clutching member F16D25/02 takes precedence F16D25/048 takes precedence

Abstract

Disclosed are a clutch operating system and a driving method of a clutch operating system. The system may include a clutch master cylinder connected to a clutch pedal and generating hydraulic pressure by operation of the clutch pedal, a piston provided in the clutch master cylinder and reciprocally moving according to the operation of the clutch pedal, and an integrated sensor detecting a stroke of the piston, selectively supplying power to a starting motor according to the stroke of the piston, and providing the stroke of the piston to an ECU (electronic control unit) to control a transmission and an EPB (electronic parking brake).

Claims

1. A clutch operating system comprising:

a clutch master cylinder connected to a clutch pedal and generating hydraulic pressure by operation of the clutch pedal;

a piston provided in the clutch master cylinder and reciprocally moving according to the operation of the clutch pedal; and

an integrated sensor detecting a stroke of the piston, selectively supplying power to a starting motor according to the stroke of the piston, and providing the stroke of the piston to an ECU (electronic control unit) to control a transmission and an EPB (electronic parking brake).

2. The clutch operating system of claim 1, wherein the integrated sensor comprises:

an ignition lock switch selectively supplying the power to the starting motor; and

a stroke sensor detecting the stroke of the piston by detecting a magnetic force generated at a magnet provided in the piston.

3. The clutch operating system of claim 2, wherein power is supplied through a first power terminal provided in the integrated sensor, and power output to the ECU through a clutch terminal is protected when the stroke of the piston detected by the integrated sensor reaches a first predetermined value.

4. The clutch operating system of claim 3, wherein the first predetermined value is about 50% of a full stroke of the piston.

5. The clutch operating system of claim 2, wherein the ignition lock switch receives power through a second power terminal provided in the integrated sensor, and supplies the power to the starting motor through a starting terminal when the stroke of the piston detected by the integrated sensor reaches a second predetermined value.

6. The clutch operating system of claim 5, wherein the second predetermined value is about 85% of a full stroke of the piston.

7. The clutch operating system of claim 3, wherein:

the ignition lock switch receives power through a second power terminal provided in the integrated sensor, and supplies the power to the starting motor through a starting terminal when the stroke of the piston detected by the integrated sensor reaches a second predetermined value; and

the power supplied to the first power terminal and the power supplied to the second power terminal are separated from each other.

8. A driving method of a clutch operating system, comprising:

measuring a stroke of a piston provided in a clutch master cylinder according to operation of a clutch pedal;

supplying the stroke of the piston to an ECU through an EPB terminal;

protecting power outputted from a clutch terminal when the stroke of the piston reaches a first predetermined value; and

supplying power to a starting motor when the stroke of the piston reaches a second predetermined value.

9. The driving method of the clutch operating system of claim 8, wherein the first predetermined value is about 50% of a full stroke of the piston.

10. The driving method of the clutch operating system of claim 8, wherein the second predetermined value is about 85% of a full stroke of the piston.