CN110341669A - A kind of electrification control method applied to line traffic control brake fluid system - Google Patents
A kind of electrification control method applied to line traffic control brake fluid system Download PDFInfo
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- CN110341669A CN110341669A CN201910667090.2A CN201910667090A CN110341669A CN 110341669 A CN110341669 A CN 110341669A CN 201910667090 A CN201910667090 A CN 201910667090A CN 110341669 A CN110341669 A CN 110341669A
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Classifications
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- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- 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
- B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4081—Systems with stroke simulating devices for driver input
-
- 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
- B60T2270/82—Brake-by-Wire, EHB
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
The object of the present invention is to provide a kind of electrification control method applied to line traffic control brake fluid system, when system electrification, pedal enters mechanical backup mode, does not tread on plate and enters conventional brake-by-wire；It under the mechanical backup mode of system electrification, removes foot and enters conventional brake-by-wire, do not remove the mechanical backup mode of foot or system electrification, not removing foot, deep pedal enters the brake-by-wire of degradation again；Foot is removed under the brake-by-wire of degradation and enters conventional brake-by-wire, does not remove the brake-by-wire that foot still degrades；System will be in mechanical backup mode when not powering on；Three kinds of braking modes are provided, there is continuous braking feel, meet the braking intention of driver, increase the service life of system, reduce the work noise of system, reduce the use cost of brake pedal switch.
Description
Technical field
The present invention relates to line traffic control hydraulic braking fields more particularly to a kind of applied to the upper automatically controlled of line traffic control brake fluid system
Method processed.
Background technique
For a kind of existing line control brake system, number of patent application US20170320477A1, a kind of decoupling of description
The electric brake system of formula enters conventional brake-by-wire mode if system one powers on, and when driver's pedal powers on, is
System will activate brake-by-wire immediately, and pedal simulator valve is opened immediately at this time, and pedal will sink suddenly, and the feel of driver will be sent out
Raw mutation causes discomfort, as shown in the curve c2 of Fig. 2；Decoupling isolating valve will close at this time, and pressure charging system will be according to a step
Goal pressure execute pressurization, the load of mutation will reduce the durable of transmission mechanism, increase the noise of system work.Do not changing
On the basis of mechanical structure and electronic hardware, need to propose a kind of control strategy for powering on brake initiation, when driver steps on
When pedal powers on, both guaranteed the continuous feel of driver, and also met the true braking intention of driver, at the same to system self
Protection and noise control have preferable gain effect.
Summary of the invention
To solve the above problems, the present invention provides a kind of electrification control method applied to line traffic control brake fluid system, it is
When system powers on, pedal enters mechanical backup mode, does not tread on plate and enters conventional brake-by-wire；The mechanical backup of system electrification
It under mode, removes foot and enters conventional brake-by-wire, do not remove the mechanical backup mode of foot or system electrification, do not remove foot and trample deeply again
Plate enters the brake-by-wire of degradation；Foot is removed under the brake-by-wire of degradation and enters conventional brake-by-wire, does not remove what foot still degraded
Brake-by-wire；System will be in mechanical backup mode when not powering on；When driver's pedal powers on, both guaranteed that driver was continuous
Feel, also meet the true braking intention of driver, while self-protection to system and noise control have preferable gain
Effect provides three kinds of braking modes, has continuous braking feel, meets the braking intention of driver, increase making for system
With the service life, the work noise of system is reduced, reduces the use cost of brake pedal switch, solves asking of occurring in background technique
Topic.
The object of the present invention is to provide a kind of electrification control methods applied to line traffic control brake fluid system, include line traffic control
Braking system includes fluid reservoir, detection valve, pedal, displacement sensor, master cylinder, pressure sensor, pedal simulator, simulator
Valve, decoupling valve one, decoupling valve two, fluid infusion check valve, pressure charging system, deceleration loading include:
When system is in the conventional brake-by-wire mode of power-up state, driver's pedal pushes master cylinder piston Forward, displacement
Sensor detects that input push rod displacement is more than that the threshold value of setting or pressure sensor detect that master cylinder pressure is more than setting
After threshold value, pedal simulator valve opening is connected to master cylinder with pedal simulator, and the braking feel of driver will be by pedal simulator
It provides, decoupling valve one and decoupling valve two are closed, and pressure charging system inputs push rod displacement signal according to pedal and master cylinder pressure signal is held
Row deceleration loading builds pressure；
When a system is powered up, displacement sensor and pressure sensor read pedal input push rod displacement signal s1 and master cylinder at this time
Pressure signal p1；
When a system is powered up, if the displacement signal s1 and pressure signal p1 that detect are less than the threshold value of setting, show to drive
The non-pedal of member, by the of short duration time, system enters conventional brake-by-wire mode；If the displacement signal s1 that detects or
Pressure signal p1 is more than the threshold value of setting, shows driver's pedal, vehicle stop, tail and number plate light is lighted at this time, but braking system
It is still within mechanical backup mode；
When system is in the mechanical backup mode powered on, displacement sensor and pressure sensor continue to read real-time pedal
Input push rod displacement signal and master cylinder pressure signal；
When system is in the mechanical backup mode powered on, if detecting, displacement signal and pressure signal are decreased below setting
Threshold value, show that driver has removed foot, system enters conventional brake-by-wire mode, if detect displacement signal or pressure letter
Number still above setting threshold value, show that driver continues to step on pedal, vehicle stop, tail and number plate light continues to be remain at this time, but
Braking system is still within mechanical backup mode；
When system is still within the mechanical backup mode powered on, displacement sensor and pressure sensor continue reading and step in real time
Plate inputs push rod displacement signal s2 and master cylinder pressure signal p2；
When system is still within the mechanical backup mode powered on, if detecting displacement signal difference (s2-s1) and pressure signal
Difference (p2-p1) is less than the threshold value of setting, shows driver without deep pedal, vehicle stop, tail and number plate light is after continuation of insurance at this time
It holds and lights, braking system is still within mechanical backup mode, if detecting displacement signal difference (s2-s1) or pressure signal difference
(p2-p1) be more than setting threshold value, show that driver deep pedal and has specific braking intention again, system enters at this time
The brake-by-wire mode of degradation, driver's feel will not mutate；
When system enters the brake-by-wire mode of degradation, simulator valve continues to remain off, and decouples valve one and decoupling
Valve two is closed, and the braking intention of driver is identified by pressure sensor, and controller is calculated according to the pressure signal detected
Goal pressure, and time delay time delay, amplitude attenuation amplitude are carried out to goal pressure by degradation module
Downgrade processings, the pressure charging systems such as attenuate, rate limit rate limit execute the goal pressure after final degradation；
When system is in the brake-by-wire mode to degrade, displacement sensor and pressure sensor continue to read real-time pedal
Input push rod displacement signal and master cylinder pressure signal；
When system is in the brake-by-wire mode to degrade, if detecting, displacement signal or pressure signal are not below the threshold of setting
Value, shows that driver does not remove foot, system is still within the brake-by-wire mode of degradation at this time, if detecting displacement signal and pressure
Force signal is below the threshold value of setting, shows that driver has removed foot, the brake-by-wire mode of degradation is exited at this time, into routine
Brake-by-wire mode；
When system enters conventional brake-by-wire mode, has logged out and powered on the brake initiation stage, powered on control for brake
Logic has been finished.
Further improvement lies in that: when system be in it is lower electricity when, driver's pedal push master cylinder piston Forward, brake fluid by
It cannot be introduced into pedal simulator in the closing of simulator valve, deceleration loading will be entered by normally opened decoupling valve one and decoupling valve two,
System is in mechanical backup boost mode.
Further improvement lies in that: when system electrification, pedal enters mechanical backup mode, does not tread on plate and enters conventional line
Control is dynamic；Under the mechanical backup mode of system electrification, removes foot and enter conventional brake-by-wire, do not remove the machine of foot or system electrification
Tool backup mode, not removing foot, deep pedal enters the brake-by-wire of degradation again；Removed under the brake-by-wire of degradation foot enter it is conventional
Brake-by-wire does not remove the brake-by-wire that foot still degrades；System will be in mechanical backup mode when not powering on.
Beneficial effects of the present invention: providing three kinds of braking modes, when driver's pedal powers on, both guarantees driver
Continuous feel also meets the true braking intention of driver, while self-protection to system and noise control have preferably
Gain effect.
And it includes
1, it continuously brakes feel: when being switched to brake-by-wire mode from mechanical backup mode, by not opening simulator valve, preventing
Only the unexpected sinking of pedal causes driver uncomfortable, guarantees the continuity of feel.
2, meet the braking intention of driver: in the brake-by-wire mode of degradation, due to simulator valve, decoupling one and of valve
Decoupling valve two is turned off, and displacement signal variation is smaller, and the braking intention of driver is identified using pressure signal, and pressure charging system will
According to the control of master cylinder pressure signal performance objective pressure.
3, the service life for increasing system, reduces the work noise of system: actual in the brake-by-wire mode of degradation
Vehicle is in the stationary state of starting for the first time, after carrying out downgrade processing to goal pressure by degradation module.Pressure charging system
Implementation procedure can become smooth soft, and the working speed of motor can be also substantially reduced, and have preferable protective effect to transmission mechanism,
The work noise of system also has biggish reduction.
4, reduce the use cost of brake pedal switch: system can pass through the signal of displacement sensor and pressure sensor
The braking intention of comprehensive descision driver controls lighting or extinguishing for vehicle Brake lamp with this, does not need using brake pedal
Switching signal, therefore the use cost of brake pedal switch can be reduced.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is the graph of relation of pedal input push rod displacement and master cylinder pressure of the present invention.
The goal pressure curve and the goal pressure curve graph after downgrade processing that Fig. 3 is the not degraded processing of the present invention.
Fig. 4 is existing line control brake system figure.
Wherein: 1- fluid reservoir, 2- detect valve, 3- pedal, 4- displacement sensor, 5- master cylinder, 6- pressure sensor, 7- pedal
Simulator, 8- simulator valve, 9- decouple valve one, and 10- decouples valve two, and 11- fluid infusion check valve, 12- pressure charging system, 13- brakes negative
It carries, the goal pressure curve of the not degraded processing of n1-, the goal pressure curve after n2- downgrade processing.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
As shown in Figs 1-4, the present embodiment provides a kind of electrification control methods applied to line traffic control brake fluid system, including
There is line control brake system, includes fluid reservoir 1, detection valve 2, pedal 3, displacement sensor 4, master cylinder 5, pressure sensor 6, pedal mould
Quasi- device 7, simulator valve 8, decoupling valve 1, decoupling valve 2 10, fluid infusion check valve 11, pressure charging system 12, deceleration loading 13, including
Have:
When system is in the conventional brake-by-wire mode of power-up state, driver's pedal 3 pushes the Forward of 5 piston of master cylinder, position
Displacement sensor 4 detects that input push rod displacement is more than that the threshold value of setting or pressure sensor 6 detect that master cylinder pressure is more than to set
After fixed threshold value, the opening of pedal simulator valve 8 is connected to master cylinder 5 with pedal simulator 7, and the braking feel of driver will be by pedal
Simulator 7 provides, and decoupling valve 1 and decoupling valve 2 10 are closed, and pressure charging system 12 inputs push rod displacement signal and master according to pedal
Cylinder pressure signal execution deceleration loading 13 builds pressure, as shown in the curve c3 of Fig. 2；
When a system is powered up, displacement sensor 4 and pressure sensor 6 read pedal input push rod displacement signal s1 at this time and
Master cylinder pressure signal p1, as shown in the curve c1 of Fig. 2；
When a system is powered up, if the displacement signal s1 and pressure signal p1 that detect are less than the threshold value of setting, show to drive
The non-pedal 3 of member, by the of short duration time, system enters conventional brake-by-wire mode, if the displacement signal detected at this time
S1 or pressure signal p1 is more than the threshold value of setting, shows driver pedal 3, and vehicle stop, tail and number plate light is lighted at this time, but
Braking system is still within mechanical backup mode, as shown in the curve c1 of Fig. 2；
When system is in the mechanical backup mode powered on, displacement sensor 4 and pressure sensor 6 continue reading and step in real time
Plate inputs push rod displacement signal and master cylinder pressure signal；
When system is in the mechanical backup mode powered on, if detecting, displacement signal and pressure signal are decreased below setting
Threshold value, show that driver has removed foot, system enters conventional brake-by-wire mode, if detect displacement signal or pressure letter
Number still above setting threshold value when, show that driver continues to step on pedal 3, at this time vehicle stop, tail and number plate light continue holding point
It is bright, but braking system is still within mechanical backup mode, as shown in the curve c1 of Fig. 2；
When system is still within the mechanical backup mode powered on, displacement sensor 4 and pressure sensor 6 continue to read in real time
Pedal input push rod displacement signal s2 and master cylinder pressure signal p2；
When system is still within the mechanical backup mode powered on, if detecting displacement signal difference (s2-s1) and pressure signal
Difference (p2-p1) is less than the threshold value of setting, shows driver without deep pedal 3, vehicle stop, tail and number plate light continues at this time
It is remain on, braking system is still within mechanical backup mode, if detecting, displacement signal difference (s2-s1) or pressure signal are poor
When being worth (p2-p1) and being more than threshold value of setting, show that driver deep pedal 3 and has specific braking intention again, at this time system
The brake-by-wire mode of degradation is entered, driver's feel will not mutate, as shown in the curve c1 of Fig. 2；
When system enters the brake-by-wire mode of degradation, simulator valve 8 continues to remain off, and decoupling valve 1 is conciliate
Coupling valve 2 10 is closed, and the braking intention of driver is identified by pressure sensor 6, as shown in the curve c1 of Fig. 2, controller root
Goal pressure is calculated according to the pressure signal detected, and time delay (time is carried out to goal pressure by degradation module
Delay), the downgrade processings such as amplitude attenuation (amplitude attenuate), rate limit (rate limit), pressure charging system
12 execute the goal pressure after final degradation, as shown in figure 3, n1 is the goal pressure curve of not degraded processing, n2 is to degrade
Treated goal pressure curve；
When system is in the brake-by-wire mode to degrade, displacement sensor 4 and pressure sensor 6 continue reading and step in real time
Plate inputs push rod displacement signal and master cylinder pressure signal；
When system is in the brake-by-wire mode to degrade, if detecting, displacement signal or pressure signal are not below the threshold of setting
Value, shows that driver does not remove foot, system is still within the brake-by-wire mode of degradation at this time, if detecting displacement signal and pressure
Force signal is below the threshold value of setting, shows that driver has removed foot, the brake-by-wire mode of degradation is exited at this time, into routine
Brake-by-wire mode；
When system enters conventional brake-by-wire mode, has logged out and powered on the brake initiation stage, powered on control for brake
Logic has been finished.
When system is in lower electricity, driver's pedal 3 pushes the Forward of 5 piston of master cylinder, and brake fluid is closed due to simulator valve 8
It closes and cannot be introduced into pedal simulator 7, deceleration loading 13 will be entered by normally opened decoupling valve 1 and decoupling valve 2 10, at system
In mechanical backup boost mode.
System will be in mechanical backup mode when not powering on.
When system electrification, pedal enters mechanical backup mode, does not tread on plate and enters conventional brake-by-wire；System electrification
Mechanical backup mode under, remove foot and enter conventional brake-by-wire, do not remove the mechanical backup mode of foot or system electrification, do not remove
Deep pedal enters the brake-by-wire of degradation to foot again；Foot is removed under the brake-by-wire of degradation and enters conventional brake-by-wire, does not remove foot
Or the brake-by-wire to degrade；System will be in mechanical backup mode when not powering on；Three kinds of braking modes are provided, driver is worked as
When pedal powers on, both guaranteed the continuous feel of driver, also meet the true braking intention of driver, at the same to system from
I protects and noise control has preferable gain effect.
The present embodiment includes continuous braking feel: when being switched to brake-by-wire mode from mechanical backup mode, by not
Simulator valve 8 is opened, prevents the unexpected sinking of pedal 3 from causing driver uncomfortable, guarantees the continuity of feel.Meet driver's
Braking intention: in the brake-by-wire mode of degradation, since simulator valve 8, decoupling valve 1 and decoupling valve 2 10 are turned off, position
Shifting signal variation is smaller, the braking intention of driver is identified using pressure signal, pressure charging system 12 will be believed according to 5 pressure of master cylinder
The control of number performance objective pressure.The service life of increase system reduces the work noise of system: in the line traffic control dynamic model of degradation
When formula, actual vehicle is in the stationary state of starting for the first time, after carrying out downgrade processing to goal pressure by degradation module.
The implementation procedure of pressure charging system 12 can become smooth soft, and the working speed of motor can be also substantially reduced, to transmission mechanism have compared with
Good protective effect, the work noise of system also have biggish reduction.Reduce the use cost of brake pedal switch.System can
Judge the braking intention of driver with the signal synthesis by displacement sensor 4 and pressure sensor 6, vehicle system is controlled with this
Lighting or extinguishing for dynamic lamp, does not need using brake pedal switch signal, thus can reduce the use of brake pedal switch at
This.
Claims (3)
- It include fluid reservoir 1. a kind of electrification control method applied to line traffic control brake fluid system, includes line control brake system (1), valve (2), pedal (3), displacement sensor (4), master cylinder (5), pressure sensor (6), pedal simulator (7), simulation are detected Device valve (8), decoupling valve one (9), decoupling valve two (10), fluid infusion check valve (11), pressure charging system (12), deceleration loading (13), It is characterized in that: including:When system is in the conventional brake-by-wire mode of power-up state, before driver's pedal (3) pushes master cylinder (5) piston It moves, displacement sensor (4) detects that input push rod displacement is more than that the threshold value of setting or pressure sensor (6) detect master cylinder pressure After threshold value of the power more than setting, pedal simulator valve (8) opening is connected to master cylinder (5) with pedal simulator (7), the system of driver Dynamic feel will be provided by pedal simulator (7), decouple valve one (9) and decoupling valve two (10) is closed, pressure charging system (12) basis is stepped on Plate input push rod displacement signal and master cylinder pressure signal execute deceleration loading (13) and build pressure；When a system is powered up, displacement sensor (4) and pressure sensor (6) read pedal at this time and input push rod displacement signal s1 With master cylinder pressure signal p1；When a system is powered up, if the displacement signal s1 and pressure signal p1 that detect are less than the threshold value of setting, show to drive The non-pedal (3) of member, by the of short duration time, system enters conventional brake-by-wire mode；If the displacement signal s1 detected Or pressure signal p1 is more than the threshold value of setting, shows driver pedal (3), vehicle stop, tail and number plate light is lighted at this time, but Braking system is still within mechanical backup mode；When system is in the mechanical backup mode powered on, displacement sensor (4) and pressure sensor (6) continue to read in real time Pedal input push rod displacement signal and master cylinder pressure signal；When system is in the mechanical backup mode powered on, if detecting, displacement signal and pressure signal are decreased below setting Threshold value, show that driver has removed foot, system enters conventional brake-by-wire mode, if detect displacement signal or pressure letter Number still above setting threshold value, show that driver continues to step on pedal (3), at this time vehicle stop, tail and number plate light continue holding point It is bright, but braking system is still within mechanical backup mode；When system is still within the mechanical backup mode powered on, displacement sensor (4) and pressure sensor (6) continue to read in fact When pedal input push rod displacement signal s2 and master cylinder pressure signal p2；When system is still within the mechanical backup mode powered on, if detecting displacement signal difference (s2-s1) and pressure signal Difference (p2-p1) is less than the threshold value of setting, show driver without deep pedal (3), at this time vehicle stop, tail and number plate light after Continuous to be remain on, braking system is still within mechanical backup mode, if detecting displacement signal difference (s2-s1) or pressure signal Difference (p2-p1) is more than the threshold value of setting, shows that driver deep pedal (3) and has specific braking intention again, is at this time System enters the brake-by-wire mode of degradation, and driver's feel will not mutate；When system enters the brake-by-wire mode of degradation, simulator valve (8) continues to remain off, and decouples valve one (9) It closes with decoupling valve two (10), the braking intention of driver identified by pressure sensor (6), and controller is according to detecting Pressure signal calculates goal pressure, and is declined by degradation module to goal pressure progress time delay (time delay), amplitude Subtract the downgrade processings such as (amplitude attenuate), rate limit (rate limit), pressure charging system (12) executes final Goal pressure after degradation；When system is in the brake-by-wire mode to degrade, displacement sensor (4) and pressure sensor (6) continue to read in real time Pedal input push rod displacement signal and master cylinder pressure signal；When system is in the brake-by-wire mode to degrade, if detecting, displacement signal or pressure signal are not below the threshold of setting Value, shows that driver does not remove foot, system is still within the brake-by-wire mode of degradation at this time, if detecting displacement signal and pressure Force signal is below the threshold value of setting, shows that driver has removed foot, the brake-by-wire mode of degradation is exited at this time, into routine Brake-by-wire mode；When system enters conventional brake-by-wire mode, has logged out and powered on the brake initiation stage, powered on control for brake Logic has been finished.
- 2. a kind of electrification control method applied to line traffic control brake fluid system as described in claim 1, it is characterised in that: when being When system is in lower electricity, driver's pedal (3) pushes the Forward of master cylinder (5) piston, and brake fluid is closed due to simulator valve (8) can not Into pedal simulator (7), deceleration loading (13) will be entered by normally opened decoupling valve one (9) and decoupling valve two (10), system In mechanical backup mode.
- 3. a kind of electrification control method applied to line traffic control brake fluid system as described in claim 1, it is characterised in that: system When powering on, pedal enters mechanical backup mode, does not tread on plate and enters conventional brake-by-wire；The mechanical backup mould of system electrification It under formula, removes foot and enters conventional brake-by-wire, do not remove the mechanical backup mode of foot or system electrification, do not remove foot deep pedal again Into the brake-by-wire of degradation；Foot is removed under the brake-by-wire of degradation and enters conventional brake-by-wire, does not remove the line that foot still degrades Control is dynamic；System will be in mechanical backup mode when not powering on.
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| CN201910667090.2A CN110341669B (en) | 2019-07-23 | 2019-07-23 | Power-on control method applied to line control hydraulic braking system |
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| CN201910667090.2A CN110341669B (en) | 2019-07-23 | 2019-07-23 | Power-on control method applied to line control hydraulic braking system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872677A (en) * | 2022-05-05 | 2022-08-09 | 万向钱潮股份有限公司 | Method for judging driver braking intention of multi-axis commercial vehicle line control braking system based on travel and pressure signals |
| CN115158249A (en) * | 2021-04-06 | 2022-10-11 | 芜湖伯特利汽车安全系统股份有限公司 | Vehicle braking method for coping with decoupling failure |
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| CN109941255A (en) * | 2019-04-22 | 2019-06-28 | 南京经纬达汽车科技有限公司 | Double card with multiple-working mode clamps double electric cylinders from primary brake system and braking method |
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| CN115158249B (en) * | 2021-04-06 | 2023-12-22 | 芜湖伯特利汽车安全系统股份有限公司 | Vehicle braking method for coping with decoupling failure |
| CN114872677A (en) * | 2022-05-05 | 2022-08-09 | 万向钱潮股份有限公司 | Method for judging driver braking intention of multi-axis commercial vehicle line control braking system based on travel and pressure signals |
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