JPS6266867U

JPS6266867U -

Info

Publication number: JPS6266867U
Application number: JP15982385U
Authority: JP
Priority date: 1985-10-17
Filing date: 1985-10-17
Publication date: 1987-04-25

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の系統図。第２図
、第３図、第４図、第５図及び第６図は、４ポー
ト４位置制御弁のみの電磁開閉弁及び応圧切換弁
で構成の実施例の系統図を示す。第７図は、Ｘ配
管の車両への実施例の系統図を示す。１：ブレーキペダル、２：タンデムマスターシ
リンダー、３，３′：前輪ブレーキ、４，４′：
後輪ブレーキ、５，５′，６，６′：４ポート４
位置制御弁、７：モーター、８：ポンプ、９：ア
キユームレーター、１０：リザーブタンク、１１
：踏力センサー、１２，１２′，１３，１３′：
圧力センサー、１４，１４′，１５，１５′：車
輪圧センサー、１６：電子制御装置、１７：２ポ
ート２位置制御弁、１８，１８′，１９，２２：
３ポート２位置制御弁、２０，２１，２３：３ポ
ート３位置制御弁、１７′：応圧切換弁。 FIG. 1 is a system diagram of the first embodiment of the present invention. FIGS. 2, 3, 4, 5, and 6 show system diagrams of an embodiment configured with only a 4-port, 4-position control valve, an electromagnetic on-off valve, and a pressure-responsive switching valve. FIG. 7 shows a system diagram of an embodiment of the X piping for a vehicle. 1: Brake pedal, 2: Tandem master cylinder, 3, 3': Front brake, 4, 4':
Rear wheel brake, 5, 5', 6, 6': 4 ports 4
Position control valve, 7: Motor, 8: Pump, 9: Accumulator, 10: Reserve tank, 11
: Pedal force sensor, 12, 12', 13, 13':
Pressure sensor, 14, 14', 15, 15': Wheel pressure sensor, 16: Electronic control device, 17: 2 port 2 position control valve, 18, 18', 19, 22:
3-port 2-position control valve, 20, 21, 23: 3-port 3-position control valve, 17': Pressure-responsive switching valve.

Claims

[Scope of Claim for Utility Model Registration] (1) In the conduit connecting the master cylinder and at least one or more controlled wheel brakes: - A first port that introduces pressure from the master cylinder; and - Supply pressure to the wheel brakes. It has a second port, a third port that introduces pump pressure, and a fourth port that discharges brake fluid into a brake fluid reserve tank, and the first port and second port communicate, and the other ports With the 1st position, which is out of contact. - With the 2nd position, where the 2nd port and 3rd port are in contact, and other ports are out of contact. - With the 2nd position, where the 2nd port is in contact with the 4th port, and the other ports are out of contact. In a brake pressure control device equipped with a 4-port 4-position control valve that can be switched between a third position where the ports are out of communication and a fourth position where each port is out of communication, a brake operation input detection means is provided, A brake pressure control device characterized in that, when a brake is operated, the four-port, four-position control valve is normally controlled to a position other than the first position, and the wheel brake to be controlled is pressurized by pump pressure. (2) The brake according to claim 1, wherein the 4-port 4-position control valve is always maintained at the first position when the pump pressure is below a certain value. Pressure control device. (3) The 4-port 4-position control valve can be switched by electromagnetic force: ・ From three 2-port 2-position control valves, or ・ From one 3-port 2-position control valve and one 3-port 3-position control valve. or - The brake pressure control device according to claim 1 or 2, characterized in that it is composed of one 2-port 2-position control valve and one 3-port 3-position control valve. (4) The utility model registration claim 1 is characterized in that the 4-port 4-position control valve includes a pressure-responsive switching valve that switches between the first position and other positions using the pump pressure as a control input. The brake pressure control device according to item 1, item 2, item 3. (5) Utility model registration claim 1, characterized in that the brake operation input detection means is a master cylinder pressure detection means provided between a master cylinder and the 4-port 4-position control valve.
The brake pressure control device according to item 1, 2, 3, or 4. (6) The 4-port 4-position control valve is configured to include a 2-position control valve that switches between the first position and other positions, and the 2-position control valve is configured to include a plurality of 4-position control valves.
Utility model registration claim 1 characterized in that the port is configured to be shared among 4-position control valves.
The brake pressure control device according to item 1, 2, 3, 4, or 5.