CN109421684A - The diagnostic device of brake control - Google Patents
The diagnostic device of brake control Download PDFInfo
- Publication number
- CN109421684A CN109421684A CN201810878113.XA CN201810878113A CN109421684A CN 109421684 A CN109421684 A CN 109421684A CN 201810878113 A CN201810878113 A CN 201810878113A CN 109421684 A CN109421684 A CN 109421684A
- Authority
- CN
- China
- Prior art keywords
- valve
- electrodynamic pump
- accumulator valve
- accumulator
- brake
- 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.)
- Granted
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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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/90—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using a simulated speed signal to test speed responsive control means
-
- 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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake 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
-
- 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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/406—Test-mode; Self-diagnosis
-
- 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
- B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention provides a kind of diagnostic device of brake control, brake fluid pressure can be inhibited to pulse when diagnosing brake control.The diagnostic device of the brake control includes wheel cylinder, assigns brake force to wheel by bearing brake fluid pressure；Master cylinder is used to generate corresponding with the operation of brake pedal hydraulic；Electrodynamic pump, the hydraulic line being set between master cylinder and wheel cylinder, and the brake fluid supplied to wheel cylinder is pressurizeed；And accumulator valve, its suction side that electrodynamic pump is set in hydraulic line, for hydraulic line to be opened and closed, for controlling the control unit of the work of electrodynamic pump and the opening and closing of accumulator valve in the case where initial detecting condition is set up, accumulator valve is set to start valve opening, after accumulator valve completes valve opening, electrodynamic pump is made to start to work, and the valve opening state of accumulator valve is maintained to stop until the work of electrodynamic pump.
Description
Technical field
The present invention relates to a kind of diagnostic devices of brake control.
Background technique
Patent document 1 describes a kind of brake control, what whether which worked normally
Systems inspection control.The control of systems inspection described in the patent document 1 are as follows: have passed through the 1st at the time of self-ignition switch connection
It is powered after predetermined time to motor, and also to the energization of inside gate valve and valve opening, then, was passing through for the 2nd predetermined time
When stop energization to motor, then, at the time of have passed through for 3 predetermined time, stop the energization and valve closing to inside gate valve.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 10-35467 bulletin
Summary of the invention
Problems to be solved by the invention
But the open and close valve as the gate valve of inside needs the time until starting valve opening to valve opening completion.Therefore, exist
When being powered simultaneously to inside gate valve and motor as described in above patent document 1, motor can be completed to hold in inside gate valve
It works before valve.
In addition, time until being energized to motor real work certainly and since be energized to open and close valve it is practical until valve opening
Time is also possible to difference.In this case, even if being powered simultaneously to inside gate valve and motor as described above, also having can
Energy motor works before inside gate valve completes valve opening.
If motor works before inside gate valve completes valve opening, main pump in the state that a part of gate valve is closed in inside
Attraction act on inside gate valve.As a result, in the state that the attraction of the main pump driven by motor is acted on inwardly
The flow for the brake fluid that gate valve flows into is restricted, and therefore, the hydraulic circuit between inside gate valve and main pump becomes negative pressure state,
Pressure difference is generated between the upstream side and downstream side of inside gate valve.In this state, in inside gate valve valve opening, brake fluid pressure
It pulses, since the pulsation causes braking with tube vibration.The vibration of braking piping is via consolidating for fixed braking piping
Determine component to transmit to vehicle body, and is propagated as pulsation sound to car.Even if such problems is in addition to horse in the driving source of main pump
Can also it occur when actuator except reaching.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide one kind can be in diagnosis brake control
When inhibit brake fluid pressure to pulse the diagnostic device of brake control.
The solution to the problem
The present invention provides a kind of diagnostic device of brake control in order to achieve the above objectives, includes wheel cylinder,
By bearing the hydraulic come to wheel imparting brake force of working solution；Master cylinder is used to generate corresponding with the operation of brake pedal
It is hydraulic；Electrodynamic pump, the hydraulic path being set between the master cylinder and the wheel cylinder, and the working solution that will be supplied to the wheel cylinder
Pressurization；And open and close valve, in the hydraulic path be set to the electrodynamic pump suction side, for the hydraulic path into
Row opening and closing, the diagnostic device of the brake control have for controlling the work of the electrodynamic pump and the opening and closing of the open and close valve
Control unit, the control unit makes the open and close valve start valve opening, opens described in the case where scheduled conditions for diagnostics is set up
Valve closing is completed to make the electrodynamic pump start to work after valve opening, and maintains the valve opening state of the open and close valve until the electrodynamic pump
Work stop.
The effect of invention
Brake fluid pressure can be inhibited to pulse when diagnosing brake control in accordance with the invention it is possible to provide one kind
The diagnostic device of brake control.
Detailed description of the invention
Fig. 1 is the outline frame of the vehicle of the diagnostic device of the brake control equipped with one embodiment of the present of invention
Figure.
Fig. 2 is the structure chart of the ESP unit controlled by the brake control of one embodiment of the present of invention.
Fig. 3 is after indicating that the IG executed using the diagnostic device of the brake control of one embodiment of the present of invention is connected
The flow chart of the process of processing.
Fig. 4 be using one embodiment of the present of invention brake control diagnostic device execute initial inspection when
An example of sequence figure.
Description of symbols
1, vehicle；3, brake apparatus；4, front-wheel (wheel)；5, rear-wheel (wheel)；6,16, wheel cylinder；8, brake pedal；10,
Controller (control unit)；11, ignition switch；12, vehicle-wheel speed sensor；15, master cylinder；20, ESP unit (control for brake dress
It sets)；22A, 22B, 22C, 23A, 23B, 23C, braking piping；24,25, electrodynamic pump；26, electric motor；31,32,33,34,35,
36,37,38,39,41,42,43,44,45,46,47,48,49, hydraulic line；SV6, SV16, accumulator valve (open and close valve).
Specific embodiment
The diagnostic device of the brake control of an embodiment of the invention includes wheel cylinder, by bearing work
The hydraulic of liquid assigns brake force to wheel；Master cylinder is used to generate corresponding with the operation of brake pedal hydraulic；Electrodynamic pump,
It is set to the hydraulic path between master cylinder and wheel cylinder, and the working solution supplied to wheel cylinder is pressurizeed；And open and close valve, hydraulic
The suction side of electrodynamic pump, for hydraulic path to be opened and closed, the spy of the diagnostic device of the brake control are set in access
Sign is there is the control unit for controlling the work of electrodynamic pump and the opening and closing of open and close valve, control unit is in scheduled diagnosis item
In the case that part is set up, open and close valve is made to start valve opening, so that electrodynamic pump is started to work after the completion of open and close valve valve opening, and maintains to open
The valve opening state of valve closing stops until the work of electrodynamic pump.The brake control of an embodiment of the invention as a result,
Diagnostic device can inhibit brake fluid pressure to pulse when diagnosing brake control.
[embodiment]
Referring to Fig.1~Fig. 4 illustrates the diagnostic device of the brake control of one embodiment of the present of invention.
As shown in Figure 1, vehicle 1 is configured to include controller 10 and ESP (registered trademark: Electronic Stability
Program) unit 20.ESP unit 20 and aftermentioned master cylinder etc. together constitute with brake apparatus 3 (referring to Fig. 2).The present embodiment
ESP unit 20 constitutes brake control of the invention.The controller 10 of the present embodiment constitutes control unit of the invention.
Controller 10 by with CPU (central processing unit), RAM (random access memory), ROM (read-only memory),
For saving the flash memory of backup data etc. and the computer unit composition of input port and delivery outlet.In computer list
In the ROM of member other than being stored with various constants and various mappings etc., it is also stored with the function for realizing the computer unit
The program of energy.
Controller 10 is electrically connected with the ESP unit 20 of brake apparatus 3, and controller 10 is by controlling the ESP unit 20, control
Hydraulic (hereinafter referred to as " brake fluid pressure ") of brake fluid as working solution, the working solution act on the front-wheel 4 as wheel
With rear-wheel 5.
Controller 10 be connected with ignition switch 11, vehicle-wheel speed sensor 12 and brake switch 13 etc. it is various switch,
Various sensor classes.Vehicle-wheel speed sensor 12 is used to detect the rotation speed of wheel.Controller 10 is based on passing from wheel velocity
The detection signal that sensor 12 inputs calculates the speed (hereinafter referred to as " speed ") of vehicle 1.Brake switch 13 is in brake pedal 8
The switch that (referring to Fig. 2) is opened in the case where being operated.
There is stability control, polling power controlling, ABS (anti-lock braking system) control in the control implemented by controller 10
System and EBD (electronic braking force distribution) control etc..
Stability control is the control for inhibiting vehicle in sideslips such as corners.Polling power controlling is for inhibiting driving
Take turns the control dallied when starting or accelerating.ABS control is that control brake fluid pressure prevents wheel lock up in emergency braking etc.
Control.
In ABS control, when the slip rate of each wheel of the controller 10 on the basis of by speed becomes larger, in ESP unit 20
In repeat the holding, decompression and pressurization of brake fluid pressure.
EBD control is to make the braking force distribution of wheel become the control that most appropriate mode is adjusted.Controller 10
Slip rate based on each wheel carries out EBD control.EBD controls the small slip rate of the slip rate to control than implementation ABS to implement.
Thus, implement EBD control when slip rate is smaller, implements ABS control when slip rate becomes larger.
Controller 10 is after the opening of ignition switch 11, in the initial inspection condition establishment as scheduled conditions for diagnostics
When, execute the initial inspection of ESP unit 20.Diagnose in the initial inspection of ESP unit 20 is such as aftermentioned valve, electrodynamic pump
It is no to be normally carried out movement.
In the present embodiment, scheduled initial inspection condition is set as, and after the opening of ignition switch 11, speed reaches predetermined
Speed.Preset vehicle speed is set as such as 10km/h or so.Preset vehicle speed is not limited to above-mentioned speed.
As shown in Fig. 2, brake apparatus 3 includes brake pedal 8, operated by driver；And the master of tandem
Cylinder 15 is used as hydraulic pressure generating unit, for generating system corresponding with the operation of brake pedal 8 (hereinafter referred to as " brake operating ")
Hydrodynamic pressure.Master cylinder 15 is for generating brake fluid pressure corresponding with brake operating.
It is equipped with the booster 14 as power assisting device in master cylinder 15, which is produced using not shown engine etc.
Raw negative pressure increases brake fluid pressure corresponding with the brake operating of master cylinder 15.
In addition, brake apparatus 3 there is the ESP unit 20 that is connected with master cylinder 15 and be connected with ESP unit 20, make
For the wheel cylinder 6 and wheel cylinder 16 of brake force given unit.Wheel cylinder 6 and wheel cylinder 16 are braked by bearing brake fluid pressure to assign to wheel
Power.
Specifically, wheel cylinder 6 is configured at the front-wheel 4 of left and right, it to be used for brake front wheel 4.Wheel cylinder 16 is configured at the rear-wheel of left and right
5, it is used for braking rear-wheel 5.In addition, the near front wheel 4 is labeled as LF in Fig. 2, off-front wheel 4 is labeled as RF.In addition, by left back
Wheel 5 is labeled as LR, and off hind wheel 5 is labeled as RR.
In brake apparatus 3, wheel cylinder 6 and wheel cylinder 16 are acted on by the brake fluid pressure generated in master cylinder 15, to front-wheel 4
It is braked with rear-wheel 5.
In addition, in brake apparatus 3, by the brake fluid pressure from master cylinder 15 that is controlled using ESP unit 20 or by
The brake fluid pressure that ESP unit 20 generates acts on wheel cylinder 6 and wheel cylinder 16, to control the brake force of front-wheel 4 and rear-wheel 5.
Brake apparatus 3 has the hydraulic pressure transfer path for the two systems for intersecting piping method (diagonal form piping method), left
Front-wheel 4 and off hind wheel 5 it is pairs of the hydraulic pressure transfer path hydraulic pressure transfer path pairs of with off-front wheel 4 and left rear wheel 5 it is mutually independent.
Even if as a result, because leakage etc. occurs also utilize in the undesirable situation of work on a hydraulic pressure transfer path
Another hydraulic pressure transfer path ensures brake force.
The hydraulic pressure transfer path of the two systems of ESP unit 20 is constituted identically in relation to each other, therefore to a hydraulic pressure transfer road
Diameter is illustrated.
Illustrate the near front wheel 4 (LF of Fig. 2) of ESP unit 20 and the hydraulic pressure transfer path of off hind wheel 5 (RR of Fig. 2) below.
Brake apparatus 3 has braking piping 22A, braking piping 22B and braking piping 22C.Braking is piped 22A for master cylinder
15 and ESP unit 20 connects, and the brake fluid pressure from master cylinder 15 is guided to ESP unit 20.Braking piping 22A utilizes not shown
The fixing components such as fixture be fixed on vehicle body.
Braking piping 22B connects the wheel cylinder 6 of ESP unit 20 and the near front wheel 4, by the brake fluid pressure from ESP unit 20
It is guided to wheel cylinder 6.
Braking piping 22C connects the wheel cylinder 16 of ESP unit 20 and off hind wheel 5, by the brake fluid pressure from ESP unit 20
It is guided to wheel cylinder 16.
ESP unit 20 has hydraulic line 31, and hydraulic line 31 is connected with braking piping 22A.In the hydraulic line 31
Equipped with shut-off valve SV1, the solenoid valve of the open type of valve closing is constituted when valve opening, energization when shut-off valve SV1 is by powering off.Shut-off valve
SV1 carries out electric control by controller 10.
ESP unit 20 has hydraulic line 32, hydraulic line 33, and the hydraulic line 32, hydraulic line 33 are from hydraulic line
The downstream side branch of 31 shut-off valve SV1, and via the described braking piping 22B, braking piping 22C respectively with wheel cylinder 6, wheel cylinder
16 are connected.Here, the upstream side of ESP unit 20 refers to that the upstream side of brake fluid flow direction, the downstream side of ESP unit 20 are
Refer to the downstream side of brake fluid flow direction.
It is equipped in hydraulic line 32 and keeps valve SV2, be equipped in hydraulic line 33 and keep valve SV3, holding valve SV2, kept
The solenoid valve of the open type of valve closing is constituted when valve opening, energization when valve SV3 is by powering off.It keeps valve SV2, keep valve SV3 by controller
10 carry out electric control.
ESP unit 20 has hydraulic line 34, hydraulic line 35, holding valve of the hydraulic line 34 from hydraulic line 32
The downstream side branch of SV2, the downstream side branch that keeps valve SV3 of the hydraulic line 35 from hydraulic line 33.
It is equipped with pressure reducing valve SV4 in hydraulic line 34, is equipped with pressure reducing valve SV5, pressure reducing valve SV4, decompression in hydraulic line 35
The solenoid valve of the closed type of valve opening is constituted when valve closing, energization when valve SV5 is by powering off.Pressure reducing valve SV4, pressure reducing valve SV5 are by controller
10 carry out electric control.
ESP unit 20 has the liquid reservoir 30 for storing brake fluid.Hydraulic line 34, hydraulic line 35 are in downstream side collection
Merging is connected with hydraulic line 36, which is connected with liquid reservoir 30.
ESP unit 20 has electrodynamic pump 24 driven by electric motor 26, as working solution presser unit.Electrodynamic pump 24
Hydraulic line between master cylinder 15 and wheel cylinder 6, wheel cylinder 16, specifically, being set to by hydraulic line 37 and hydraulic line 38
The hydraulic line of composition.Electrodynamic pump 24 is used to pressurize the brake fluid supplied to wheel cylinder 6, wheel cylinder 16.
Electrodynamic pump 24 and liquid reservoir 30 are connected using hydraulic line 37.Electrodynamic pump 24 is stored in via the sucking of hydraulic line 37
The brake fluid of liquid reservoir 30.
It is connected with hydraulic line 38 in the discharge side of electrodynamic pump 24, the shut-off valve of the hydraulic line 38 and hydraulic line 31
The downstream side of SV1 is connected.Upstream side branch of the hydraulic line 39 from the shut-off valve SV1 of hydraulic line 31, the hydraulic line 39
It is connected with hydraulic line 37.In the present embodiment, from above-mentioned hydraulic line 31 to hydraulic line 39 and from hydraulic line 41
Hydraulic path is respectively constituted to hydraulic line 49.
The opening and closing that the ESP unit 20 constituted in this way can switch above-mentioned each valve using controller 10 is combined.ESP as a result,
The state that unit 20 can be imported always with remaining unchanged from the brake fluid pressure of master cylinder 15 to wheel cylinder 16, controls to keep brake fluid
In the holding mode of pressure, the pressure reducing mode depressurized to brake fluid pressure and the boost mode being pressurized to brake fluid pressure
Any one.
Controller 10 is powered to holding valve SV3 in the case where rear-wheel 5 is set on hold mode, so that valve SV3 will be kept to set
For closed valve state, pressure reducing valve SV5 is set as closed valve state.The brake fluid in braking piping 22C is blocked as a result, the system of rear-wheel 5
Hydrodynamic pressure is maintained.
In addition, controller 10 is powered to holding valve SV3, pressure reducing valve SV5 in the case where rear-wheel 5 is set as pressure reducing mode, from
And valve SV3 will be kept to be set as closed valve state, pressure reducing valve SV5 is set as valve opening state.Brake fluid in braking piping 22C as a result,
It is discharged via hydraulic line 36 to liquid reservoir 30, the brake fluid pressure of rear-wheel 5 is depressurized.
In addition, controller 10 will keep valve SV3, pressure reducing valve SV5 power-off in the case where rear-wheel 5 is set as boost mode, from
And valve SV3 will be kept to be set as valve opening state, pressure reducing valve SV5 is set as closed valve state.As a result, from the brake fluid pressure quilt of master cylinder 15
It is guided to wheel cylinder 16, the brake fluid pressure of rear-wheel 5 is pressurized.
In addition, in the case where making the brake fluid pressure higher than master cylinder 15 act on wheel cylinder 16 of rear-wheel 5, be intended to not against
In the case where generating brake force to the brake operating of driver, controller 10 is under boost mode further to shut-off valve SV1, storage
Pressure valve SV6 is powered, and shut-off valve SV1 is set as pressure regulation state, accumulator valve SV6 is set as valve opening state, and electrodynamic pump 24 is made to work.
It is guided as a result, in the brake fluid pressure that electrodynamic pump 24 generates to wheel cylinder 16.In this case, the system higher than master cylinder 15
Hydrodynamic pressure acts on the wheel cylinder 16 of rear-wheel 5.
The near front wheel 4 (LF of Fig. 2) of ESP unit 20 and the hydraulic pressure transfer road of off hind wheel 5 (RR of Fig. 2) is explained above
The hydraulic pressure transfer path of diameter, off-front wheel 4 (RF of Fig. 2) and left rear wheel 5 (LR of Fig. 2) is similarly formed.
Brake apparatus 3 has and braking piping 22A, braking piping 22B and braking piping 22C identical braking piping
23A, braking piping 23B and braking piping 23C.
ESP unit 20 has and hydraulic line 31, hydraulic line 32, hydraulic line 33, hydraulic line 34, hydraulic line
35, hydraulic line 36, hydraulic line 37, hydraulic line 38, the identical hydraulic line 41 of hydraulic line 39, hydraulic line 42, liquid
Pressure pipeline 43, hydraulic line 44, hydraulic line 45, hydraulic line 46, hydraulic line 47, hydraulic line 48, hydraulic line 49.
ESP unit 20 have shut-off valve SV11 identical with shut-off valve SV1, with keep valve SV2, holding valve SV3 it is identical
Keep valve SV12, keep valve SV13, pressure reducing valve SV14 identical with pressure reducing valve SV4, pressure reducing valve SV5, pressure reducing valve SV15 and with
The identical accumulator valve SV16 of accumulator valve SV6.
ESP unit 20 has liquid reservoir 40 identical with liquid reservoir 30 and electrodynamic pump 25 identical with electrodynamic pump 24.In addition,
Electrodynamic pump 24, electrodynamic pump 25 are driven by an electric motor 26.The driving source of electrodynamic pump 24 and electrodynamic pump 25 be also possible in addition to
Actuator except electric motor 26.
In addition, ESP unit 20 has the pressure sensor 27 for detecting the brake fluid pressure of master cylinder 15.Pressure sensor 27
It is electrically connected with controller 10.
Then, the initial inspection of ESP unit 20 is illustrated referring to Fig. 3 and Fig. 4.
Check whether electrodynamic pump 24, electrodynamic pump 25 work normally in the initial inspection of the present embodiment.Specifically, right
After electric motor 26 issues driving instruction i.e. transmission driving signal, whether controller 10 monitors electric motor 26 prespecified
Pump work inspection during driven, to check whether electrodynamic pump 24, electrodynamic pump 25 work normally.10 energy of controller
It is enough to judge whether electric motor 26 has driven based on the driving voltage of electric motor 26.It is set during said pump performance review
For, in order to confirm the work of electrodynamic pump 24, electrodynamic pump 25 and driving instruction required, relative to electric motor 26 it is lasting when
Between maximum value.
Here, the accumulator valve SV6 of the present embodiment is set to the suction side of the electrodynamic pump 24 of hydraulic line 39, it is used for hydraulic tube
Line 39 is opened and closed, and accumulator valve SV16 is set to the suction side of the electrodynamic pump 25 of hydraulic line 49, for hydraulic line 49 to be opened and closed.This reality
Apply the accumulator valve SV6 of example, accumulator valve SV16 constitutes open and close valve of the invention.
Therefore, when ESP unit 20 carries out initial inspection, if accumulator valve SV6, accumulator valve SV16 are in electrodynamic pump 24, electronic
Valve opening or electrodynamic pump 24, electrodynamic pump 25 are before accumulator valve SV6, accumulator valve SV16 complete valve opening after pump 25 is worked
It works, then the liquid between the hydraulic line between accumulator valve SV6 and electrodynamic pump 24 and accumulator valve SV16 and electrodynamic pump 25
Pressure pipeline becomes negative pressure state.
In this case, accumulator valve SV6, accumulator valve SV16 upstream side and downstream side between generate pressure difference.At this
Under state, if accumulator valve SV6, accumulator valve SV16 valve opening, it is likely that brake fluid pressure occurs to pulse and causes to brake by the pulsation
It is piped 22A, braking piping 23A vibration.
In the present embodiment, in order to inhibit the pulsation because of the brake fluid pressure caused by braking piping 22A, braking piping 23A
Vibration, be set as between the hydraulic line and accumulator valve SV16 and electrodynamic pump 25 between accumulator valve SV6 and electrodynamic pump 24
Hydraulic line it is constant be negative pressure state at the time of under so that electrodynamic pump 24, electrodynamic pump 25 is worked.
It is specifically set as, in the case where initial inspection condition is set up, accumulator valve SV6, accumulator valve SV16 is made to start valve opening,
Electrodynamic pump 24, electrodynamic pump 25 is set to start to work after valve opening completion.
In addition, at the end of initial inspection, if making accumulator valve SV6 before electrodynamic pump 24, electrodynamic pump 25 stop completely, storing
Pressure valve SV16 starts valve closing, then the hydraulic line between accumulator valve SV6 and electrodynamic pump 24 and accumulator valve SV16 and electrodynamic pump 25
Between hydraulic line become negative pressure state.Thus, in the present embodiment, at the end of initial inspection, maintenance accumulator valve SV6,
The valve opening of accumulator valve SV16 is until the work of electrodynamic pump 24, electrodynamic pump 25 stops." the work of electrodynamic pump 24, electrodynamic pump 25
The meaning of stopping " is, also because of the inertial rotation of electric motor 26, stream after stopping relative to the driving of electric motor 26 instruction
The inertia of body and work electrodynamic pump 24, electrodynamic pump 25 completely stop.
In the present embodiment, it will not generated under the action of any one of master cylinder 15 or electrodynamic pump 24, electrodynamic pump 25
The state of brake fluid pressure is set as " brake fluid pressure=0 ", in this case, the state of " brake fluid pressure > 0 " is referred to as barotropic state,
The state of " brake fluid pressure < 0 " is referred to as negative pressure state.
Fig. 3 is to indicate that the IG executed using the controller 10 of the present embodiment connects the flow chart of the process of post-processing.Fig. 3 institute
The processing shown executes in the state that ignition switch 11 is switched on.
As shown in figure 3, controller 10 judges whether initial inspection condition has set up (step S1).Specifically, controller
10 judge that speed is switched on whether reached preset vehicle speed later in ignition switch 11.
Controller 10 repeats the processing of step S1 until initially examining in the case where being judged as that initial inspection condition is not set up
Until looking into condition establishment.
Controller 10 starts in the case where being judged as that initial inspection condition has been set up to accumulator valve SV6, accumulator valve SV16
It is powered, so that accumulator valve SV6, accumulator valve SV16 be made to start valve opening (step S2).
Then, controller 10 judges whether pass through after valve opening since accumulator valve SV6 in step s 2, accumulator valve SV16
Predetermined time T1 (step S3).Predetermined time T1 is equivalent to from starting to be energized to accumulator valve to accumulator valve SV6, accumulator valve SV16
Time needed for until the valve opening amount that SV6, accumulator valve SV16 complete valve opening, that is, accumulator valve SV6, accumulator valve SV16 become maximum.It should
Predetermined time T1 first passes through the ROM that experiment acquired and be stored in controller 10 in advance.
Here, if predetermined time T1 is shorter, it is likely that accumulator valve SV6, accumulator valve SV16 sharp valve opening, operational sound
Become larger.Therefore, in the present embodiment, operational sound when predetermined time T1 is set as accumulator valve SV6, accumulator valve SV16 valve opening is not
It can become larger time such, that accumulator valve SV6, accumulator valve SV16 slowly valve opening can be made.Predetermined time, T1 was according to accumulator valve
Specification, the specification of vehicle and be set as any time.
Controller 10 repeats the processing of step S3 until by predetermined in the case where being judged as without predetermined time T1
Until time T1.
Controller 10 be judged as have passed through predetermined time T1 in the case where, work is issued to electrodynamic pump 24 and electrodynamic pump 25
It indicates (step S4).It is driven specifically, controller 10 sends driving source, that is, electric motor 26 of electrodynamic pump 24 and electrodynamic pump 25
Dynamic signal.
Then, controller 10 judges whether terminated (step S5) during pump work inspection.Controller 10 confirms electronic horse
It is driven before whether terminating during pump work inspection up to 26.When controller 10 confirm pump work check during it is electronic
When motor 26 has driven, controller 10 stops the driving of electric motor 26 at the moment.
Controller 10 in unclosed situation, repeats the processing of step S5 until pumping work during being judged as that pump work checks
Until terminating during conducting a survey.
Knot in the case that controller 10 has terminated during being judged as pump work inspection, during judging to check from pump work
Whether beam have passed through predetermined time T2 (step S6).Here, not confirming electronic horse before terminating during pump work inspection
It is confirmed under the case where electric motor 26 drives etc. in the case where being driven up to 26, at the time of end during pump work inspection,
Electrodynamic pump 24 and electrodynamic pump 25 are issued at the time of end during pump work inspection and stop instruction.
Specifically, controller 10 stops sending driving to driving source, that is, electric motor 26 of electrodynamic pump 24 and electrodynamic pump 25
Signal.At this moment, even if stopping sending driving signal to electric motor 26, but the electrodynamic pump 24 and electronic under the effect of inertia of fluid
Pump 25 can continue working a period of time, will not stop immediately.
Predetermined time, T2 was equivalent to, and it is complete to electrodynamic pump 24 and electrodynamic pump 25 that self-stopping technology sends driving signal to electric motor 26
The full cut-off time required until stopping.The predetermined time T2 of the present embodiment is equivalent to the predetermined time of the invention.
Here, self-stopping technology sends driving signal institute until electrodynamic pump 24 and electrodynamic pump 25 stop completely to electric motor 26
The time needed for example correspondingly generates fluctuation with the viscosity of brake fluid equal.Therefore, in the present embodiment, predetermined time T2 is set
For self-stopping technology sends the driving signal time required until electrodynamic pump 24 and electrodynamic pump 25 stop completely to electric motor 26
Maximum value.Electrodynamic pump 24 and electrodynamic pump 25 can stop completely before by predetermined time T2 under various conditions as a result,.It should
Predetermined time T2 first passes through the ROM that experiment acquired and be stored in controller 10 in advance.
Controller 10 repeats the processing of step S6 until by predetermined in the case where being judged as without predetermined time T2
Until time T2.
Controller 10 be judged as have passed through predetermined time T2 in the case where, stop logical to accumulator valve SV6, accumulator valve SV16
Electricity, so that accumulator valve SV6, accumulator valve SV16 be made to start valve closing (step S7), so that IG is connected post-processing terminates.
Fig. 4 is indicated in the initial inspection of ESP unit 20, before terminating during pump work checks, to 24 He of electrodynamic pump
The work of electrodynamic pump 25 issues the example of work instruction.
As shown in figure 4, accumulator valve SV6, accumulator valve SV16 start valve opening when initial inspection condition is when moment t1 is set up.
Then, when t1 passes through predetermined time T1 at the time of the valve opening since accumulator valve SV6, accumulator valve SV16, accumulator valve SV6, pressure accumulation
The valve opening of valve SV16 is completed in moment t2.
When accumulator valve SV6, accumulator valve SV16 valve opening moment t2 complete when, it is electronic to stopping before moment t2
Pump 24 and electrodynamic pump 25 issue work instruction.In the example shown in Figure 4, it is completed with the valve opening of accumulator valve SV6, accumulator valve SV16
Work instruction simultaneously is issued to electrodynamic pump 24 and electrodynamic pump 25, but as long as the work relative to electrodynamic pump 24 and electrodynamic pump 25 refers to
Show and is at least carried out while the valve opening of accumulator valve SV6, accumulator valve SV16 are completed or after valve opening completion.To electrodynamic pump 24
Work instruction with electrodynamic pump 25 preferably carries out after the valve opening of accumulator valve SV6, accumulator valve SV16 are completed.
Then, during pump work checks at the end of moment t3, electrodynamic pump 24 and electrodynamic pump 25 is issued and stop instruction.
At this moment, accumulator valve SV6, accumulator valve SV16 maintain the state of valve opening.
Then, when t3 passes through predetermined time T2 at the time of end during checking from pump work, accumulator valve SV6, accumulator valve
SV16 starts valve closing in moment t4.Then, accumulator valve SV6, accumulator valve SV16 complete valve closing in moment t5.
As above, the initial inspection condition of the diagnostic device of the brake control of the present embodiment in ESP unit 20
In the case where establishment, accumulator valve SV6, accumulator valve SV16 start valve opening, make electrodynamic pump 24, electrodynamic pump 25 after valve opening completion
It starts to work, and maintains accumulator valve SV6, accumulator valve SV16 valve opening until the work of electrodynamic pump 24, electrodynamic pump 25 stops.
Therefore, the diagnostic device of the brake control of the present embodiment makes accumulator valve in the initial inspection of ESP unit 20
Therefore SV6, accumulator valve the SV16 complete valve opening during electrodynamic pump 24, the work of electrodynamic pump 25 can prevent accumulator valve SV6 and electricity
The hydraulic line between hydraulic line and accumulator valve SV16 and electrodynamic pump 25 between dynamic pump 24 becomes negative pressure state.As a result,
Can prevent accumulator valve SV6, accumulator valve SV16 upstream side and downstream side between generate pressure difference, be able to suppress brake fluid pressure
It pulses.
Thus, the diagnostic device of the brake control of the present embodiment is able to suppress in the initial inspection of ESP unit 20
Because brake fluid pressure pulsation caused by braking piping 22A, braking piping 23A vibration.As a result, the braking control of the present embodiment
The diagnostic device of device processed can prevent the vibration of braking piping 22A, braking piping 23A via fixing components such as fixtures to vehicle body
It transmits and is propagated as pulsation sound to car.
Herein, it is possible to which the pulsation of the brake fluid pressure generated in the initial inspection of ESP unit 20 is sometimes by following master
It wants caused by reason.
In the initial inspection of ESP unit 20, if electric motor 26 accumulator valve SV6, accumulator valve SV16 complete valve opening it
Preceding driving, then electric motor 26 accumulator valve SV6, accumulator valve SV16 valve opening action process in drive.In this case, in electricity
In the state that dynamic pump 24, electrodynamic pump 25 are worked, accumulator valve SV6, accumulator valve SV16 aperture change with time change,
Therefore, correspondingly with the variation of the aperture of accumulator valve SV6, accumulator valve SV16, the upstream side of accumulator valve SV6, accumulator valve SV16
Pressure difference between downstream side changes.In this way, may also be because of the upstream side and downstream of accumulator valve SV6, accumulator valve SV16
Pressure difference between side changes and brake fluid pressure is caused to be pulsed.
In the diagnostic device of the brake control of the present embodiment, in the initial inspection of ESP unit 20, make electrodynamic pump
24, electrodynamic pump 25 is completed to start to work after valve opening in accumulator valve SV6, accumulator valve SV16, therefore, in electrodynamic pump 24, electrodynamic pump
In 25 course of work, accumulator valve SV6, accumulator valve SV16 aperture will not change with time change.Thus, this implementation
The diagnostic device of the brake control of example is also able to suppress the upstream side because of accumulator valve SV6 as described above, accumulator valve SV16
Pressure difference between downstream side changes and is possible to the pulsation of the brake fluid pressure generated.
In addition, in the initial inspection of ESP unit 20, if accumulator valve SV6, pressure accumulation during the driving of electric motor 26
Valve SV16 carries out valve opening movement, then corresponding to the accumulator valve SV6, the variation of aperture of accumulator valve SV16 acted along with the valve opening
Ground, the pressure for acting on the valve body of accumulator valve SV6, accumulator valve SV16 change.The change of such pressure for acting on valve body
The main reason for vibrating valve body can be become by changing.The reason of vibration of such valve body is likely to become noise.
In the diagnostic device of the brake control of the present embodiment, in the initial inspection of ESP unit 20, make electrodynamic pump
24, electrodynamic pump 25 is started to work after the valve opening of accumulator valve SV6, accumulator valve SV16 are completed, therefore, in the drive of electric motor 26
The pressure for the valve body for acting on accumulator valve SV6, accumulator valve SV16 during dynamic will not change.Thus, the system of the present embodiment
The diagnostic device of dynamic control device can prevent the change of the pressure due to the valve body because acting on accumulator valve SV6, accumulator valve SV16
Change and be possible to the generation of noise caused by the vibration of the valve body generated.
In addition, the diagnostic device of the brake control of the present embodiment in the initial inspection of ESP unit 20, is pumping work certainly
After have passed through predetermined time T2 at the time of end during conducting a survey, accumulator valve SV6, accumulator valve SV16 is made to start valve closing.
Therefore, exist in the diagnostic device of the brake control of the present embodiment there is no accumulator valve SV6, accumulator valve SV16
The case where electrodynamic pump 24, electrodynamic pump 25 start valve closing before stopping completely, therefore, can prevent accumulator valve SV6 and electrodynamic pump 24
Between hydraulic line and accumulator valve SV16 and electrodynamic pump 25 between hydraulic line become negative pressure state.It is mono- in ESP as a result,
Member 20 initial inspection at the end of, can also prevent accumulator valve SV6, accumulator valve SV16 upstream side and downstream side between generate
Pressure difference is able to suppress brake fluid pressure and pulses.
Also, the diagnostic device of the brake control of the present embodiment with the valve opening of accumulator valve SV6, accumulator valve SV16 and
Such control: hydraulic line and pressure accumulation between accumulator valve SV6 and electrodynamic pump 24 is carried out in relationship at the time of valve closing
Make under at the time of hydraulic line between valve SV16 and electrodynamic pump 25 will not become negative pressure state electrodynamic pump 24 and electrodynamic pump 25 into
Row work.In this way, the diagnostic device of the brake control of the present embodiment can be in the structure using existing ESP unit 20
Control is changed simultaneously, so as to inhibit brake fluid pressure to pulse, thus, for example need not add for inhibiting brake fluid pressure
The structures such as the surge chamber of raw pulsation, it is not necessary to which the fixture for inhibiting the vibration of braking piping 22A, braking piping 23A is selected
Fixed, improvement or improvement arranging etc..Facilitate to reduce exploitation working hour as a result, is able to suppress development cost.
In addition, in the present embodiment, above-mentioned predetermined time T1 is set as being equivalent to be started to accumulator valve SV6, accumulator valve certainly
SV16 is energized to the valve opening amount that accumulator valve SV6, the complete valve opening of accumulator valve SV16 i.e. accumulator valve SV6, accumulator valve SV16 become maximum
Until needed for time, but not limited to this, and predetermined time T1 can also be set as so following.
That is, when making accumulator valve SV6, accumulator valve SV16 valve opening, accumulator valve SV6, accumulator valve SV16 upstream side and
In the case where generating pressure difference between downstream side, it is preferred that predetermined time T1 is in addition to including starting certainly to accumulator valve SV6, storage
Except time pressure valve SV16 required until being energized to accumulator valve SV6, the complete valve opening of accumulator valve SV16, when further including as transition
Between, accumulator valve SV6, accumulator valve SV16 valve opening complete after be transitioned into accumulator valve SV6, accumulator valve SV16 upstream side and
Time needed for the pressure in downstream side becomes equal state or it is predicted as the required time.Transit time is considered in this way
Structure be applicable in situations that: the work because of ESP unit 20 cause accumulator valve SV6, accumulator valve SV16 downstream side become
For in the state of negative pressure or the pressure in the downstream side of accumulator valve SV6, accumulator valve SV16 is lower relative to the pressure of upstream side
Start the initial inspection of ESP unit 20 under state.It in this case, can be in the upstream side of accumulator valve SV6, accumulator valve SV16
There is no pressure difference or the very small state-driven electric motor 26 of pressure difference between downstream side, braking can be further suppressed
It is hydraulic to pulse.
In addition, when controller 10 or ESP unit 20 accumulator valve SV6, accumulator valve SV16 upstream side and downstream side between
There is no pressure difference or pressure difference very hour, setting does not consider the predetermined time T1x of above-mentioned transit time, in accumulator valve
SV6, accumulator valve SV16 downstream side be negative pressure state or accumulator valve SV6, accumulator valve SV16 downstream side pressure relative to
In the case where the lower state of the pressure of upstream side, predetermined time T1y also can be set as, predetermined time T1y is to open certainly
Add on time needed for until beginning to be energized to accumulator valve SV6, the complete valve opening of accumulator valve SV16 to accumulator valve SV6, accumulator valve SV16
Time (wherein, T1x < T1y) obtained by upper above-mentioned transit time.Also, it also can be set as, in accumulator valve SV6, accumulator valve
In the case that the downstream side of SV16 is negative pressure state, according to the negative pressure state, that is to say, that accumulator valve SV6, accumulator valve SV16
The pressure in downstream side is lower, keeps predetermined time T1y longer.
In addition, being set as such structure in the present embodiment: no matter whether confirming electricity in during pump work inspection
The driving of dynamic motor 26, by after predetermined time T2, making accumulator valve SV6, storing at the time of end during being checked from pump work
Pressure valve SV16 starts valve closing.Thus, in the present embodiment, prespecified length is set as during pump work is checked.
In contrast, it also can be set to such structure: confirming electric motor 26 in during pump work checks
When driving, after confirming the driving, after have passed through predetermined time T2 at the time of stopping from the driving of electric motor 26, make
Accumulator valve SV6, accumulator valve SV16 start valve closing.In this case, during pump work inspection with confirm the drive of electric motor 26
It is correspondingly suitably changed at the time of dynamic.Such as it can be judged using controller 10 based on the driving voltage of electric motor 26
The driving of electric motor 26 is whether it has stopped.
In addition, being set as such structure in the present embodiment: in the initial inspection of ESP unit 20, from accumulator valve
SV6, accumulator valve SV16 start to have passed through predetermined time T1 driving electric motor 26 later at the time of valve opening, but are not limited to
This, also can be set to the structure of the sensor provided with valve opening detection, and the sensor of the valve opening detection is for detecting pressure accumulation
The valve opening completion of valve SV6, accumulator valve SV16.
In the structure for being provided with the sensor that the valve opening for detecting accumulator valve SV6, accumulator valve SV16 is completed, in ESP
In the initial inspection of unit 20, examined after accumulator valve SV6, accumulator valve SV16 start valve opening and using the sensor of valve opening detection
Measure accumulator valve SV6, the valve opening of accumulator valve SV16 drives electric motor 26 after completing.
It disclosed above the embodiment of the present invention, but it is clear that, those skilled in the art can not depart from of the invention
Apply to range change.And all such modifications and equivalent are contained in following claims.
Claims (2)
1. a kind of diagnostic device of brake control, the diagnostic device of the brake control are characterized in that, comprising:
Wheel cylinder, by bearing the hydraulic come to wheel imparting brake force of working solution；
Master cylinder is used to generate corresponding with the operation of brake pedal hydraulic；
Electrodynamic pump, the hydraulic path being set between the master cylinder and the wheel cylinder, and the working solution that will be supplied to the wheel cylinder
Pressurization；And
Open and close valve is set to the suction side of the electrodynamic pump, for opening the hydraulic path in the hydraulic path
It closes,
The diagnostic device of the brake control has work and the opening and closing of the open and close valve for controlling the electrodynamic pump
Control unit,
The control unit makes the open and close valve start valve opening in the case where scheduled conditions for diagnostics is set up, in the open and close valve
It completes to make the electrodynamic pump start to work after valve opening, and maintains the valve opening state of the open and close valve until the work of the electrodynamic pump
Work stops.
2. the diagnostic device of brake control according to claim 1, which is characterized in that
The control unit makes the open and close valve after issuing stopping instruction to the electrodynamic pump and after it have passed through the predetermined time
Start valve closing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-167225 | 2017-08-31 | ||
| JP2017167225A JP6926842B2 (en) | 2017-08-31 | 2017-08-31 | Brake control device diagnostic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109421684A true CN109421684A (en) | 2019-03-05 |
| CN109421684B CN109421684B (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810878113.XA Active CN109421684B (en) | 2017-08-31 | 2018-08-03 | Diagnostic device for brake control device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6926842B2 (en) |
| CN (1) | CN109421684B (en) |
| DE (1) | DE102018214121A1 (en) |
| FR (1) | FR3070341B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7190385B2 (en) * | 2019-03-27 | 2022-12-15 | ダイハツ工業株式会社 | brake system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1035467A (en) * | 1996-07-25 | 1998-02-10 | Unisia Jecs Corp | Brake controller |
| CN1594855A (en) * | 2003-09-10 | 2005-03-16 | 日立优喜雅汽车配件有限公司 | Air transfer apparatus and control method of air transfer apparatus |
| CN1601075A (en) * | 2003-09-22 | 2005-03-30 | 日立优喜雅汽车配件有限公司 | Diagnoser and method for air transferring appts |
| CN201982770U (en) * | 2011-04-21 | 2011-09-21 | 浙江正洲泵阀制造有限公司 | Electric control device for automatic weighted pressure maintaining pilot-operated valve |
| CN104768817A (en) * | 2012-10-30 | 2015-07-08 | 丰田自动车株式会社 | Vehicle brake control device |
| CN104768813A (en) * | 2012-10-30 | 2015-07-08 | 丰田自动车株式会社 | Vehicle brake control device |
-
2017
- 2017-08-31 JP JP2017167225A patent/JP6926842B2/en active Active
-
2018
- 2018-08-03 CN CN201810878113.XA patent/CN109421684B/en active Active
- 2018-08-21 DE DE102018214121.5A patent/DE102018214121A1/en active Pending
- 2018-08-30 FR FR1857803A patent/FR3070341B1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1035467A (en) * | 1996-07-25 | 1998-02-10 | Unisia Jecs Corp | Brake controller |
| CN1594855A (en) * | 2003-09-10 | 2005-03-16 | 日立优喜雅汽车配件有限公司 | Air transfer apparatus and control method of air transfer apparatus |
| CN1601075A (en) * | 2003-09-22 | 2005-03-30 | 日立优喜雅汽车配件有限公司 | Diagnoser and method for air transferring appts |
| CN201982770U (en) * | 2011-04-21 | 2011-09-21 | 浙江正洲泵阀制造有限公司 | Electric control device for automatic weighted pressure maintaining pilot-operated valve |
| CN104768817A (en) * | 2012-10-30 | 2015-07-08 | 丰田自动车株式会社 | Vehicle brake control device |
| CN104768813A (en) * | 2012-10-30 | 2015-07-08 | 丰田自动车株式会社 | Vehicle brake control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109421684B (en) | 2021-04-23 |
| FR3070341B1 (en) | 2023-07-28 |
| JP6926842B2 (en) | 2021-08-25 |
| JP2019043319A (en) | 2019-03-22 |
| DE102018214121A1 (en) | 2019-02-28 |
| FR3070341A1 (en) | 2019-03-01 |
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