JP2000185638A - Brake pressure control device for vehicle - Google Patents
Brake pressure control device for vehicleInfo
- Publication number
- JP2000185638A JP2000185638A JP10364948A JP36494898A JP2000185638A JP 2000185638 A JP2000185638 A JP 2000185638A JP 10364948 A JP10364948 A JP 10364948A JP 36494898 A JP36494898 A JP 36494898A JP 2000185638 A JP2000185638 A JP 2000185638A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- pressure
- control device
- vehicle
- switching 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.)
- Pending
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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/50—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having means for controlling the rate at which pressure is reapplied to or released from the brake
- B60T8/5081—Pressure release using a plurality of valves in parallel
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/326—Hydraulic systems
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/50—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having means for controlling the rate at which pressure is reapplied to or released from the brake
- B60T8/5012—Pressure reapplication using a plurality of valves in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ブレーキ操作に応
じた電気信号により圧力源の圧力をブレーキ操作に応じ
て制御する車両用ブレーキ圧制御装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle brake pressure control device for controlling the pressure of a pressure source according to a brake operation by an electric signal corresponding to a brake operation.
【０００２】[0002]
【従来の技術】近年の車両用ブレーキシステムは、アン
チロックブレーキシステムの装備を始めとするブレーキ
機能のインテリジェント化に伴い、電動化がめざまし
い。例えば、車両用の油圧ブレーキシステムの場合は、
ブレーキペダル操作を検出してブレーキ操作に応じた電
気信号を出力するペダル操作検出手段と、供給される油
圧に応じて車輪に制動力をかける油圧ディスクブレーキ
等のブレーキ装置と、ブレーキ装置に供給する油圧を発
生する油圧発生源と、ペダル操作検出手段の出力信号に
基づいて油圧発生源からブレーキ装置に供給する油圧を
制御するブレーキ圧制御装置とを備えた構成のものが種
々開発されている。2. Description of the Related Art In recent years, a vehicle brake system has been remarkably electrified in accordance with an intelligent brake function including an anti-lock brake system. For example, in the case of a hydraulic brake system for a vehicle,
Pedal operation detecting means for detecting an operation of the brake pedal and outputting an electric signal corresponding to the brake operation, a brake device such as a hydraulic disc brake for applying a braking force to wheels according to the supplied hydraulic pressure, and a brake device. Various configurations have been developed including a hydraulic pressure generation source that generates hydraulic pressure, and a brake pressure control device that controls the hydraulic pressure supplied from the hydraulic pressure generation source to the brake device based on the output signal of the pedal operation detection means.
【０００３】このような構成の油圧ブレーキシステムで
は、制動力の微調整を可能にしてブレーキ操作性を向上
させるためには、ブレーキ装置へ供給する油圧をブレー
キ操作に応じて微調整可能に制御するブレーキ圧制御装
置を構成することが必要不可欠になる。そのため、従来
装置では、例えばブレーキ圧制御装置に２位置２方向型
の電磁切替弁を適用してパルス制御を行うものがある。In the hydraulic brake system having such a configuration, in order to enable fine adjustment of the braking force and improve brake operability, the hydraulic pressure supplied to the brake device is controlled to be finely adjustable according to the brake operation. It becomes essential to configure a brake pressure control device. For this reason, some conventional devices perform pulse control by applying, for example, a two-position two-way electromagnetic switching valve to a brake pressure control device.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来
の、一定化した固定圧力を供給する圧力源を装備した油
圧回路でパルス制御を行っても、滑らかな加圧を得るこ
とが難しかった。そこで、油圧を微調整可能にするため
に、高精度で応答性に優れた高性能の圧力調整弁を使用
した場合、高性能の圧力調整弁のコストが高いこと、こ
の圧力調整弁の制御のために高性能な制御回路の搭載が
必要になること等から、ブレーキシステムのコストアッ
プを招くという問題が生じた。However, even if pulse control is performed by a conventional hydraulic circuit equipped with a pressure source for supplying a fixed pressure, it is difficult to obtain smooth pressurization. Therefore, if a high-precision and highly responsive high-performance pressure regulating valve is used to enable fine adjustment of the hydraulic pressure, the cost of the high-performance pressure regulating valve is high and the control of this pressure regulating valve is For this reason, it is necessary to mount a high-performance control circuit, which causes a problem of increasing the cost of the brake system.
【０００５】本発明は上記事情に鑑みてなされたもの
で、安価な２位置２方向型の電磁切替弁と、この２位置
２方向型の電磁切替弁の動作を制御する比較的簡単な制
御回路とで、油圧の微調整を実現することができて、制
動力の微調整が容易で操作性に優れたブレーキシステム
を安価に得ることができる車両用ブレーキ圧制御装置を
提供することを目的とする。The present invention has been made in view of the above circumstances, and is an inexpensive two-position two-way electromagnetic switching valve and a relatively simple control circuit for controlling the operation of the two-position two-way electromagnetic switching valve. Accordingly, it is an object of the present invention to provide a brake pressure control device for a vehicle, which can realize a fine adjustment of a hydraulic pressure and can easily obtain a brake system which is easy to finely adjust a braking force and has excellent operability at a low cost. I do.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る車両用ブレーキ圧制御装置は、ブレーキ
操作に応じた電気信号により圧力源の圧力をブレーキ操
作に応じて制御する車両用ブレーキ圧制御装置におい
て、圧力源とブレーキ装置とを互いに並列な複数の管路
でつなぎ、各管路に電磁切替弁及び絞り量が互いに異な
るオリフィスを設けたことを特徴とする。According to the present invention, there is provided a vehicle brake pressure control apparatus for controlling a pressure of a pressure source according to a brake operation in accordance with a brake operation. The brake pressure control device is characterized in that the pressure source and the brake device are connected by a plurality of parallel pipes, and each pipe is provided with an electromagnetic switching valve and an orifice having a different throttle amount.
【０００７】そして、上記構成によれば、圧力源とブレ
ーキ装置とを連絡している複数の管路にそれぞれ装備さ
れる各電磁切替弁は、構造が単純で安価である２位置２
方向型とし、管路を開く電磁切替弁を選択することで、
ブレーキ装置への供給油圧の微調整が可能になる。そし
て、各電磁切替弁の動作制御は、動作位置切替用のパル
ス制御で容易にできるため、制御も容易になる。従っ
て、安価な２位置２方向型の電磁切替弁と、この電磁切
替弁の動作を制御する比較的簡単な制御回路で、油圧の
微調整を実現することができて、制動力の微調整が容易
で操作性に優れたブレーキシステムを安価に得ることが
できる。According to the above configuration, each of the electromagnetic switching valves provided in each of the plurality of conduits communicating the pressure source and the brake device has a simple and inexpensive two-position two-position valve.
By selecting a directional type and selecting an electromagnetic switching valve that opens the pipeline,
Fine adjustment of the hydraulic pressure supplied to the brake device becomes possible. Further, the operation control of each electromagnetic switching valve can be easily performed by pulse control for switching the operation position, so that the control is also facilitated. Therefore, fine adjustment of the hydraulic pressure can be realized with an inexpensive two-position two-way electromagnetic switching valve and a relatively simple control circuit for controlling the operation of the electromagnetic switching valve, and fine adjustment of the braking force can be achieved. A brake system that is easy and has excellent operability can be obtained at low cost.
【０００８】なお、好ましくは、前記車両用ブレーキ圧
制御装置において、ブレーキ装置と該ブレーキ装置に供
給された圧力を解放するリザーバとを互いに並列な複数
の管路でつなぎ、各管路に電磁切替弁及び絞り量が互い
に異なるオリフィスを設けた構成とするとよい。このよ
うにすると、圧力解放側の管路に装備される各電磁切替
弁を、加圧側の管路と同様に２位置２方向型の電磁切替
弁として、管路を開く電磁切替弁を選択することで、ブ
レーキ装置の減圧動作も微調整が可能になり、加圧側の
管路上の２位置２方向型の電磁切替弁の動作制御と組み
合わせることによって、ブレーキ装置への供給圧力の更
なる微調整も可能になり、ブレーキ操作性を一層向上さ
せることができる。Preferably, in the vehicle brake pressure control device, the brake device and a reservoir for releasing the pressure supplied to the brake device are connected to each other by a plurality of parallel pipes, and electromagnetic switching is performed on each pipe. It is preferable to provide a configuration in which orifices having different amounts of valve and throttle are provided. With this configuration, the electromagnetic switching valves provided in the pressure release side pipeline are selected as the two-position two-way type electromagnetic switching valve similarly to the pressurization side pipeline, and the electromagnetic switching valve that opens the pipeline is selected. This makes it possible to finely adjust the depressurizing operation of the brake device, and further fine-tune the supply pressure to the brake device by combining this with the operation control of a two-position two-way solenoid-operated switching valve on the pressurized pipe. And the brake operability can be further improved.
【０００９】[0009]
【発明の実施の形態】以下、本発明に係る車両用ブレー
キ圧制御装置の好適な実施の形態を図面に基づいて詳細
に説明する。図１は、本発明に係る車両用ブレーキ圧制
御装置の一実施形態を示す概略構成図である。車両用ブ
レーキ圧制御装置１は、ブレーキバイワイヤ用のペダル
ユニット５と、供給される油圧に応じて車輪に制動力を
かける油圧ディスクブレーキよりなるブレーキ装置７
と、ブレーキ装置７に供給する油圧を発生する圧力源９
と、ブレーキ操作の解除時にブレーキ装置７の供給油圧
を解放するリザーバ８と、ペダルユニット５の出力信号
に基づいて圧力源９からブレーキ装置７に供給する油圧
を制御する制御装置（ＥＣＵ）３７とを主要部として構
成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a vehicle brake pressure control device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing one embodiment of a vehicle brake pressure control device according to the present invention. The vehicle brake pressure control device 1 includes a brake unit 7 including a brake-by-wire pedal unit 5 and a hydraulic disc brake for applying a braking force to wheels according to supplied hydraulic pressure.
And a pressure source 9 for generating a hydraulic pressure to be supplied to the brake device 7
A reservoir 8 for releasing the hydraulic pressure supplied to the brake device 7 when the brake operation is released, and a control device (ECU) 37 for controlling the hydraulic pressure supplied from the pressure source 9 to the brake device 7 based on the output signal of the pedal unit 5. The main part is configured.
【００１０】ペダルユニット５は、ブレーキペダル１１
と、このブレーキペダル１１の操作を検出してブレーキ
操作に応じた電気信号を出力するペダル操作検出手段１
３とから構成されている。ペダル操作検出手段１３は、
具体的には、ブレーキペダル１１の踏下操作の有無を検
出するブレーキスイッチ１５と、ブレーキペダル１１の
踏下量を検出するストロークセンサ１６とを備えて、ペ
ダルの踏下量に応じた電気信号を出力する。The pedal unit 5 includes a brake pedal 11
And pedal operation detecting means 1 for detecting operation of the brake pedal 11 and outputting an electric signal corresponding to the brake operation.
And 3. The pedal operation detecting means 13
Specifically, a brake switch 15 for detecting the presence or absence of a stepping operation of the brake pedal 11 and a stroke sensor 16 for detecting a stepping amount of the brake pedal 11 are provided. Is output.
【００１１】本実施の形態の場合、圧力源９は、リザー
バ８に貯留されているブレーキ油を圧送するポンプ２１
と、ポンプ２１の出力する油圧を蓄圧するアキュムレー
タ２３とから構成され、アキュムレータ２３に蓄圧され
た圧力が加圧用の管路２５を介してブレーキ装置７に供
給されるようになっている。また、制動解除時には、ブ
レーキ装置７の供給圧は減圧用の管路２７を介してリザ
ーバ８に解放される。In the case of this embodiment, the pressure source 9 is a pump 21 for pumping the brake oil stored in the reservoir 8.
And an accumulator 23 for accumulating the hydraulic pressure output from the pump 21. The pressure accumulated in the accumulator 23 is supplied to the brake device 7 via a pressurizing pipe 25. When braking is released, the supply pressure of the brake device 7 is released to the reservoir 8 via the pressure reducing pipe 27.
【００１２】車両用ブレーキ圧制御装置１は、加圧用の
管路２５に装備される加圧用回路３１と、減圧用の管路
２７に装備される減圧用回路３３と、ブレーキ装置７の
供給圧を検出する圧力センサ３５と、ブレーキ装置７に
装備される車速センサ３６と、ペダル操作検出手段１３
や圧力センサ３５及び車速センサ３６と電気接続して加
圧用回路３１及び減圧用回路３３に装備された後述の電
磁切替弁の動作を制御する制御装置３７を備える。The vehicle brake pressure control device 1 includes a pressurizing circuit 31 provided in a pressurizing pipe 25, a depressurizing circuit 33 provided in a depressurizing pipe 27, and a supply pressure of the brake device 7. Sensor 35 for detecting the vehicle speed, a vehicle speed sensor 36 provided for the brake device 7, and the pedal operation detecting means 13
And a control device 37 that is electrically connected to the pressure sensor 35 and the vehicle speed sensor 36 and controls the operation of an electromagnetic switching valve described later provided in the pressurizing circuit 31 and the depressurizing circuit 33.
【００１３】加圧用回路３１は、加圧用の管路２５の途
中に介在し、圧力源９とブレーキ装置７とを互いに並列
な３本の管路２５ａ、２５ｂ、２５ｃでつなぎ、各管路
２５ａ、２５ｂ、２５ｃに電磁切替弁３９及び絞り量が
互いに異なるオリフィス４１ａ、４１ｂ、４１ｃを設け
た構成であり、各管路２５ａ、２５ｂ、２５ｃ上の各電
磁切替弁３９は何れも管路を開閉する２位置２方向型電
磁切替弁である。各オリフィス４１ａ、４１ｂ、４１ｃ
は、オリフィス４１ａが絞り量が一番大きく、オリフィ
ス４１ｃが絞り量が一番小さくなされている。従って、
流量は、４１ａ＜４１ｂ＜４１ｃの順に、次第に大きく
なるように設定されている。The pressurizing circuit 31 is interposed in the middle of the pressurizing pipe 25 and connects the pressure source 9 and the brake device 7 with three parallel pipes 25a, 25b, 25c. , 25b, 25c are provided with an electromagnetic switching valve 39 and orifices 41a, 41b, 41c having different throttle amounts. Each of the electromagnetic switching valves 39 on each of the conduits 25a, 25b, 25c opens and closes a conduit. This is a two-position two-way electromagnetic switching valve. Each orifice 41a, 41b, 41c
The orifice 41a has the largest throttle amount and the orifice 41c has the smallest throttle amount. Therefore,
The flow rates are set so as to gradually increase in the order of 41a <41b <41c.
【００１４】減圧用回路３３は、減圧用の管路２７の途
中に介在し、ブレーキ装置７とリザーバ８を互いに並列
な２本の管路２７ａ、２７ｂでつなぎ、各管路２７ａ、
２７ｂに電磁切替弁４３及び絞り量が互いに異なるオリ
フィス４５ａ、４５ｂを設けた構成であり、各管路２７
ａ、２７ｂ上の各電磁切替弁４３は何れも管路を開閉す
る２位置２方向型電磁切替弁である。各オリフィス４５
ａ、４５ｂは、一方のオリフィス４５ａが絞り量が大き
く、他方のオリフィス４５ｂが絞り量が小さくなされて
いる。従って、流量は、４５ａ＜４５ｂの順に、大きく
なるように設定されている。The pressure reducing circuit 33 is interposed in the middle of the pressure reducing pipe 27 and connects the brake device 7 and the reservoir 8 with two parallel pipes 27a and 27b.
27b is provided with an electromagnetic switching valve 43 and orifices 45a and 45b having different throttle amounts from each other.
Each of the electromagnetic switching valves 43 on a and 27b is a two-position two-way electromagnetic switching valve that opens and closes a pipeline. Each orifice 45
In a and 45b, one of the orifices 45a has a large throttle amount, and the other orifice 45b has a small throttle amount. Therefore, the flow rate is set to increase in the order of 45a <45b.
【００１５】制御装置３７は、ペダル操作検出手段１３
や圧力センサ３５の出力信号に基づいて、加圧用回路３
１及び減圧用回路３３に装備されている各電磁切替弁３
９、４３の位置切替動作を制御することで、管路２５
ａ、２５ｂ、２５ｃ及び管路２７ａ、２７ｂの開閉を制
御して、ブレーキ装置７への供給圧の加圧や減圧を行
う。The control device 37 includes a pedal operation detecting means 13
Circuit 3 based on the output signal of the
1 and each electromagnetic switching valve 3 provided in the pressure reducing circuit 33
By controlling the position switching operation of the pipes 9 and 43, the pipeline 25 is controlled.
a, 25b, 25c and the opening and closing of the pipelines 27a, 27b are controlled to increase or decrease the supply pressure to the brake device 7.
【００１６】そして、上記のブレーキ圧制御装置１で
は、圧力源９とブレーキ装置７とを連絡している複数の
管路２５ａ、２５ｂ、２５ｃにそれぞれ装備される各電
磁切替弁３９は、構造が単純で安価である２位置２方向
型電磁切替弁で、これらの管路２５ａ、２５ｂ、２５ｃ
を開く電磁切替弁３９を択一的に選択し、もしくは、組
み合わせて選択することで、ブレーキ装置７への供給油
圧の微調整が可能になる。そして、各電磁切替弁３９の
動作制御は、動作位置切替用のパルス制御で容易にでき
るため、制御も容易になる。従って、安価な２位置２方
向型電磁切替弁３９と、この電磁切替弁３９の動作を制
御する比較的簡単な制御回路３７とで、油圧の微調整を
実現することができて、制動力の微調整が容易で操作性
に優れた油圧ブレーキシステムを安価に得ることができ
る。In the above-described brake pressure control device 1, each of the electromagnetic switching valves 39 provided in the plurality of conduits 25a, 25b, 25c connecting the pressure source 9 and the brake device 7 has a structure. It is a simple and inexpensive two-position two-way solenoid-operated directional control valve.
The fine adjustment of the hydraulic pressure supplied to the brake device 7 becomes possible by selecting the electromagnetic switching valve 39 which opens the valve alternatively or in combination. The operation control of each electromagnetic switching valve 39 can be easily performed by pulse control for switching the operation position, so that the control is also facilitated. Accordingly, fine adjustment of the hydraulic pressure can be realized by the inexpensive two-position two-way electromagnetic switching valve 39 and the relatively simple control circuit 37 for controlling the operation of the electromagnetic switching valve 39, and the braking force can be reduced. A hydraulic brake system that is easy to fine-tune and has excellent operability can be obtained at low cost.
【００１７】また、本実施の形態の車両用ブレーキ圧制
御装置１では、ブレーキ装置７とこのブレーキ装置７に
供給された圧力を解放するリザーバ８とを互いに並列な
複数の管路２７ａ、２７ｂでつなぎ、これらの各管路２
７ａ、２７ｂにも２位置２方向型の電磁切替弁４３及び
絞り量が互いに異なるオリフィス４５ａ、４５ｂを設け
た構成としているため、これらの管路２７ａ、２７ｂを
開く電磁切替弁４３を択一的に選択し、もしくは、組み
合わせて選択することで、ブレーキ装置７の減圧動作も
微調整が可能になり、加圧側の各管路上の電磁切替弁３
９の動作制御と組み合わせることによって、ブレーキ装
置７への供給圧力の更なる微調整も可能になり、ブレー
キ操作性を一層向上させることが可能になる。Further, in the vehicle brake pressure control device 1 of the present embodiment, the brake device 7 and the reservoir 8 for releasing the pressure supplied to the brake device 7 are connected by a plurality of parallel pipes 27a and 27b. Connecting these each pipeline 2
Since the two-position two-way type electromagnetic switching valve 43 and the orifices 45a and 45b having different throttle amounts are provided also in 7a and 27b, the electromagnetic switching valve 43 that opens these conduits 27a and 27b is selected. , Or by selecting in combination, the pressure-reducing operation of the brake device 7 can be finely adjusted, and the electromagnetic switching valve 3 on each of the pressurizing-side pipes can be finely adjusted.
In combination with the operation control of No. 9, further fine adjustment of the supply pressure to the brake device 7 becomes possible, and the brake operability can be further improved.
【００１８】なお、以上の実施の形態では、本発明を油
圧式のブレーキシステムに利用した場合を示したが、本
発明は、空気圧式のブレーキシステムにも利用可能であ
ることは言うまでもない。また、加圧用の各管路２５
ａ、２５ｂ、２５ｃや減圧用の管路２７ａ、２７ｂに装
備される２位置２方向型電磁切替弁とオリフィスの組み
合わせは、管路毎に油圧供給量を相異させるためのもの
で、一部のオリフィスは接続される管路（電磁弁ポー
ト）に対して、実質的に絞りのない構成とすることも可
能である。In the above embodiment, the case where the present invention is applied to a hydraulic brake system has been described, but it is needless to say that the present invention can also be used for a pneumatic brake system. In addition, each pressure line 25
The combination of the two-position two-way solenoid-operated switching valve and the orifice provided in the a, 25b, 25c and the depressurizing pipes 27a, 27b is for making the hydraulic pressure supply amount different for each pipe. The orifice may have a configuration that does not substantially restrict the pipe line (electromagnetic valve port) to be connected.
【００１９】[0019]
【発明の効果】本発明の車両用ブレーキ圧制御装置によ
れば、圧力源とブレーキ装置とを連絡している複数の管
路にそれぞれ装備される各電磁切替弁は２位置２方向型
として絞り量が互いに異なるオリフィスを設けた構造な
ので、構造が単純で安価でありながら、供給油圧の微調
整が可能になる。そして、各２位置２方向型電磁切替弁
の動作制御は、動作位置切替用のパルス制御で容易にで
きるため、制御も容易になる。従って、安価な２位置２
方向型電磁切替弁と、この２位置２方向型電磁切替弁の
動作を制御する比較的簡単な制御回路で、油圧の微調整
を実現することができて、制動力の微調整が容易で操作
性に優れたブレーキシステムを安価に得ることができ
る。According to the brake pressure control device for a vehicle of the present invention, each electromagnetic switching valve provided in each of a plurality of conduits connecting the pressure source and the brake device is a two-position two-way type throttle. Since the structure is provided with orifices having different amounts, the supply hydraulic pressure can be finely adjusted while the structure is simple and inexpensive. Further, the operation control of each two-position two-way type electromagnetic switching valve can be easily performed by the pulse control for operating position switching, so that the control is also facilitated. Therefore, inexpensive 2 position 2
The directional solenoid switching valve and the relatively simple control circuit for controlling the operation of the two-position two-way solenoid switching valve can realize the fine adjustment of the hydraulic pressure, making the fine adjustment of the braking force easy and easy to operate. A highly efficient brake system can be obtained at a low cost.
【００２０】また、請求項２に記載の構成とすると、圧
力解放側の管路に装備される各電磁切替弁を、加圧側の
管路と同様に２位置２方向型電磁切替弁として、管路を
開く電磁切替弁を選択することで、ブレーキ装置の減圧
動作も微調整が可能になり、加圧側の管路上の２位置２
方向型電磁切替弁の動作制御と組み合わせることによっ
て、ブレーキ装置への供給圧力の更なる微調整も可能に
なり、ブレーキ操作性を一層向上させることが可能にな
る。According to the second aspect of the present invention, each of the electromagnetic switching valves provided in the pressure-release-side pipe is a two-position two-way electromagnetic switching valve in the same manner as the pressurization-side pipe. By selecting an electromagnetic switching valve that opens the passage, the pressure reduction operation of the brake device can be finely adjusted, and the two positions 2
In combination with the operation control of the directional solenoid-operated switching valve, further fine adjustment of the supply pressure to the brake device becomes possible, and the brake operability can be further improved.
【図１】本発明に係る車両用ブレーキ圧制御装置の一実
施形態の概略構成図である。FIG. 1 is a schematic configuration diagram of an embodiment of a vehicle brake pressure control device according to the present invention.
１ ブレーキ圧制御装置 ５ ペダルユニット ７ ブレーキ装置 ８ リザーバ ９ 圧力源 １３ ペダル操作検出手段 ２５ 加圧用の管路 ２５ａ、２５ｂ、２５ｃ 管路 ２７ 減圧用の管路 ２７ａ、２７ｂ 管路 ３７ 制御装置 ３９、４３ 電磁切替弁 ４１ａ、４１ｂ、４１ｃ オリフィス ４３ 電磁切替弁 ４５ａ、４５ｂ オリフィス DESCRIPTION OF SYMBOLS 1 Brake pressure control device 5 Pedal unit 7 Brake device 8 Reservoir 9 Pressure source 13 Pedal operation detecting means 25 Pipe for pressurization 25a, 25b, 25c Pipe 27 Pipe for pressure reduction 27a, 27b Pipe 37 Control device 39, 43 Electromagnetic switching valve 41a, 41b, 41c orifice 43 Electromagnetic switching valve 45a, 45b orifice
Claims (2)
力源の圧力をブレーキ操作に応じて制御する車両用ブレ
ーキ圧制御装置において、 圧力源とブレーキ装置とを互いに並列な複数の管路でつ
なぎ、各管路に電磁切替弁及び絞り量が互いに異なるオ
リフィスを設けたことを特徴とする車両用ブレーキ圧制
御装置。1. A vehicle brake pressure control device for controlling the pressure of a pressure source according to a brake operation by an electric signal according to a brake operation, wherein the pressure source and the brake device are connected by a plurality of parallel pipes. A brake pressure control device for a vehicle, wherein an electromagnetic switching valve and an orifice having a different throttle amount are provided in each pipeline.
制御装置において、ブレーキ装置と該ブレーキ装置に供
給された圧力を解放するリザーバとを互いに並列な複数
の管路でつなぎ、各管路に電磁切替弁及び絞り量が互い
に異なるオリフィスを設けたことを特徴とする車両用ブ
レーキ圧制御装置。2. A brake pressure control device for a vehicle according to claim 1, wherein the brake device and a reservoir for releasing pressure supplied to the brake device are connected to each other by a plurality of parallel pipes, and A vehicle brake pressure control device, wherein an electromagnetic switching valve and an orifice having different throttle amounts are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10364948A JP2000185638A (en) | 1998-12-22 | 1998-12-22 | Brake pressure control device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10364948A JP2000185638A (en) | 1998-12-22 | 1998-12-22 | Brake pressure control device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000185638A true JP2000185638A (en) | 2000-07-04 |
Family
ID=18483059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10364948A Pending JP2000185638A (en) | 1998-12-22 | 1998-12-22 | Brake pressure control device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000185638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013176076A1 (en) * | 2012-05-22 | 2013-11-28 | 日立オートモティブシステムズ株式会社 | Pump device |
-
1998
- 1998-12-22 JP JP10364948A patent/JP2000185638A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013176076A1 (en) * | 2012-05-22 | 2013-11-28 | 日立オートモティブシステムズ株式会社 | Pump device |
| US10087917B2 (en) | 2012-05-22 | 2018-10-02 | Hitachi Automotive Systems, Ltd. | Pump device |
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