GB2289100A - Hill holder control system - Google Patents

Hill holder control system

Info

Publication number
GB2289100A
GB2289100A GB9512034A GB9512034A GB2289100A GB 2289100 A GB2289100 A GB 2289100A GB 9512034 A GB9512034 A GB 9512034A GB 9512034 A GB9512034 A GB 9512034A GB 2289100 A GB2289100 A GB 2289100A
Authority
GB
United Kingdom
Prior art keywords
valve member
control system
operated
clutch
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9512034A
Other versions
GB9512034D0 (en
Inventor
Philip Woolvin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automotive Products PLC filed Critical Automotive Products PLC
Publication of GB9512034D0 publication Critical patent/GB9512034D0/en
Publication of GB2289100A publication Critical patent/GB2289100A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
    • B60T11/105—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices with brake locking after actuation, release of the brake by a different control device, e.g. gear lever
    • B60T11/106—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices with brake locking after actuation, release of the brake by a different control device, e.g. gear lever locking and release of the brake by the clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement

Abstract

A hill holder control system for a vehicle hydraulic braking system in which a valve (1) has an inlet (9) connected to a pedal-operated source of braking pressure and and outlet (10) connected to one or more brake actuators. An inclination sensitive valve member (14) is capable of closing off a valve seat (13b) to trap brake pressure in any brake actuator connected to the outlet and a command means (11, 15, 18, 19) is provided which is operated from an associated clutch pedal and which renders the valve member (14) operative to close off the valve seat when the clutch pedal is operated. The control system also includes a valve member disabling means (31) operable to unseat the valve member (14) from the valve seat (13b) to release any trapped brake pressure, and an electrical control circuit (40) including a "brakes operating" condition sensor (35), a "brakes released" condition sensor (34) and a clutch bite point condition sensor (36). The electrical control circuit (40) is arranged to operate the disabling means (31) when the three sensors (34, 35, 36) indicate the simultaneous presence of all three conditions to ensure a timed release of brake pressure on re-engagement of the clutch. <IMAGE>
GB9512034A 1993-10-22 1994-10-21 Hill holder control system Withdrawn GB2289100A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939321828A GB9321828D0 (en) 1993-10-22 1993-10-22 Hill holder control system
PCT/GB1994/002325 WO1995011148A1 (en) 1993-10-22 1994-10-21 Hill holder control system

Publications (2)

Publication Number Publication Date
GB9512034D0 GB9512034D0 (en) 1995-09-06
GB2289100A true GB2289100A (en) 1995-11-08

Family

ID=10743974

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939321828A Pending GB9321828D0 (en) 1993-10-22 1993-10-22 Hill holder control system
GB9512034A Withdrawn GB2289100A (en) 1993-10-22 1994-10-21 Hill holder control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939321828A Pending GB9321828D0 (en) 1993-10-22 1993-10-22 Hill holder control system

Country Status (2)

Country Link
GB (2) GB9321828D0 (en)
WO (1) WO1995011148A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421088C2 (en) * 1994-06-16 1998-09-17 Voith Gmbh J M Starting device for a vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110303A2 (en) * 1982-11-24 1984-06-13 Nissan Motor Co., Ltd. Brake system for vehicle
EP0201694A2 (en) * 1985-04-24 1986-11-20 AlliedSignal Inc. Improved brake control device
GB2197415A (en) * 1986-11-14 1988-05-18 Nippon Air Brake Co Braking force holding device for an air brake system
EP0507466A1 (en) * 1991-04-03 1992-10-07 Eaton Corporation Motor vehicle hill holder system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110303A2 (en) * 1982-11-24 1984-06-13 Nissan Motor Co., Ltd. Brake system for vehicle
EP0201694A2 (en) * 1985-04-24 1986-11-20 AlliedSignal Inc. Improved brake control device
GB2197415A (en) * 1986-11-14 1988-05-18 Nippon Air Brake Co Braking force holding device for an air brake system
EP0507466A1 (en) * 1991-04-03 1992-10-07 Eaton Corporation Motor vehicle hill holder system

Also Published As

Publication number Publication date
GB9321828D0 (en) 1993-12-15
WO1995011148A1 (en) 1995-04-27
GB9512034D0 (en) 1995-09-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)