CN106004841A - Braking method for vehicle boost baking device - Google Patents
Braking method for vehicle boost baking device Download PDFInfo
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- CN106004841A CN106004841A CN201610410452.6A CN201610410452A CN106004841A CN 106004841 A CN106004841 A CN 106004841A CN 201610410452 A CN201610410452 A CN 201610410452A CN 106004841 A CN106004841 A CN 106004841A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000009977 dual effect Effects 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000004044 response Effects 0.000 claims abstract description 10
- 230000003111 delayed effect Effects 0.000 claims abstract description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 21
- 239000003921 oil Substances 0.000 claims description 14
- 230000001050 lubricating effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 206010039203 Road traffic accident Diseases 0.000 abstract 1
- 210000004712 air sac Anatomy 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
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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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
- B60T13/14—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 fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Regulating Braking Force (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The invention relates to a braking method for a vehicle boost baking device. An adopted braking device comprises braking mechanisms, a front wheel brake and a rear wheel brake, wherein each of the braking mechanisms comprises a power-assisted valve, a braking vale, an oil cup, an oil complementing one-way valve and a braking cylinder; the braking device also comprises an air sac, a dual chamber air brake valve, a first energy accumulator, a first air controlled hydraulic valve, a second energy accumulator and a second air controlled hydraulic valve; the braking mechanisms are respectively connected to the front wheel brake and the rear wheel brake. The energy accumulators are used as power sources, so that boost braking after an engine flame out can be realized. An air passage is arranged between the dual chamber air brake valve and the air controlled hydraulic valve, so that the response speed of the brakes is high, and the phenomenon of slow braking is avoided. When the front wheel brake and the rear wheel brake are long in distance, the time difference of the front wheel brake and the rear wheel brake is short relatively, and the rear wheel brake is not obviously delayed; the braking performance is not influenced, so that traffic accidents cannot be caused.
Description
Technical field
The present invention relates to a kind of brake unit, particularly relate to the braking method of a kind of vehicle booster brake unit.
Background technology
Along with conservation of natural environment is increasingly paid close attention to by people, free of contamination electric automobile has become a popular direction, and owing to eliminating traditional fuel engines, original vacuum booster loses vacuum and cannot power brake.Chinese Patent Application No. 200810163260.5 discloses a kind of hydraulic power-assisted brake device, hydraulic booster is utilized to instead of vacuum booster, solve because cancelling the problem that fuel engines cannot be carried out power brake, but foregoing invention is worked by Engine driven Hydraulic Pump, after engine misses, hydraulic pump no longer works, also cannot produce pressure oil, therefore when power brake can not be realized after engine misses, so can cause vehicle accident.Foregoing invention uses hydraulic oil to be braked, owing to the peak flow rate (PFR) of hydraulic oil is usually no more than 6m/s, so when brake pedal assembly is when brake is distant, during brake pedal assembly, the time of the brake cylinder that pressure oil is applied to brake is longer, so there will be braking hysteresis phenomenon, and owing to general front wheel brake is close to brake pedal assembly, pressure oil can be introduced into the brake cylinder of front wheel brake and be braked, during distant between front wheel brake and rear wheel brake, it is relatively long with the time difference of the brake cylinder on rear wheel brake that pressure oil is applied to front wheel brake, rear service brake can be the most delayed, have a strong impact on braking ability, cause vehicle accident.
Summary of the invention
It is an object of the invention to provide a kind of flame-out after remain to realize power brake, do not have the braking method of the vehicle booster brake unit that will not cause vehicle accident that braking is sluggish, rear service brake will not be the most delayed.
To achieve these goals, the technical scheme is that
A kind of braking method of vehicle booster brake unit, this brake unit includes arrestment mechanism, front wheel brake and rear wheel brake, described arrestment mechanism includes booster valve, brake valve, lubricating cup, repairing check valve and brake cylinder, described booster valve has first piston bar and first piston, described brake valve has the second piston rod and the second piston, the first piston bar of described booster valve is fixing with the second piston rod of brake valve to be connected or integral, described lubricating cup is connected with the rodless cavity of brake valve by check valve, and the rodless cavity of brake valve is connected with the rodless cavity of brake cylinder, 3rd piston rod of brake cylinder is connected with front wheel brake and rear wheel brake respectively, described lubricating cup setting height(from bottom) on vehicle is higher than brake cylinder setting height(from bottom) on vehicle, its improvement is:
Also include gas bag, dual air brake valve, first accumulator, first Pneumatical hydraulic value, second accumulator and the second Pneumatical hydraulic value, described arrestment mechanism is installed on front wheel brake and rear wheel brake respectively, described dual air brake valve air inlet P1, perform mouth A1 respectively with gas bag, the control mouth K mouth of the first Pneumatical hydraulic value connects, the inlet P mouth of the first Pneumatical hydraulic value, perform mouth A mouth respectively with the first accumulator, front wheel brake) on booster valve rodless cavity connect, described dual air brake valve air inlet P2, perform mouth A2 respectively with gas bag, the control mouth K mouth of the second Pneumatical hydraulic value connects, the inlet P mouth of the second Pneumatical hydraulic value, perform mouth A mouth respectively with the second accumulator, the rodless cavity of the booster valve on rear wheel brake connects.
Described second accumulator is to the length of the hydraulic channel of the second Pneumatical hydraulic value less than the first accumulator to the length of the hydraulic channel of the first Pneumatical hydraulic value, and the length of the booster valve hydraulic channel on described second Pneumatical hydraulic value to rear wheel brake is less than the length of the first Pneumatical hydraulic value to the booster valve hydraulic channel of front wheel brake.
Described dual air brake valve to the length of the gas passage of the second Pneumatical hydraulic value less than dual air brake valve to the length of the gas passage of the first Pneumatical hydraulic value.
Also having relief valve, described relief valve is connected with gas bag；
The work process of this braking method is as follows:
nullWhen driver step on dual air brake valve (2) be braked time，The air inlet P1 mouth of dual air brake valve (2) communicates with performing mouth A1 mouth，In gas bag (1), pressure air enters the control mouth K mouth of the first Pneumatical hydraulic value (4) through dual air brake valve (2)，At this moment the inlet P mouth of the first Pneumatical hydraulic value (4) communicates with performing mouth A mouth，Pressure oil in first accumulator (3) enters the rodless cavity of the booster valve (5) on front wheel brake (10)，First piston (5-2) is promoted to drive first piston bar (5-1) mobile，It is connected owing to first piston bar (5-1) and the second piston rod (6-1) are fixing，So the second piston rod (6-1) drives the second piston (6-2) mobile，The hydraulic oil making the rodless cavity of brake valve (6) enters brake cylinder (9)，So that front wheel brake (10) produces braking.
Simultaneously, the air inlet P2 mouth of dual air brake valve (2) communicates with performing mouth A2 mouth, in gas bag (1), pressure air enters the control mouth K mouth of the second Pneumatical hydraulic value (12) through dual air brake valve (2), at this moment the inlet P mouth of the second Pneumatical hydraulic value (12) communicates with performing mouth A mouth, pressure oil in second accumulator (11) enters the rodless cavity of the booster valve (5) on rear wheel brake (13), first piston (5-2) is promoted to drive first piston bar (5-1) mobile, it is connected owing to first piston bar (5-1) and the second piston rod (6-1) are fixing, so the second piston rod (6-1) drives the second piston (6-2) mobile, the hydraulic oil making the rodless cavity of brake valve (6) enters brake cylinder (9), so that rear wheel brake (13) produces braking.
When after engine misses, owing to gas bag still having pressed gas, when driver step on dual air brake valve (2) be braked time, in gas bag (1), pressure air remains to enter the control mouth K mouth of the first Pneumatical hydraulic value (4) and the control mouth K mouth of the second Pneumatical hydraulic value (12) through dual air brake valve (2), and first the hydraulic oil of accumulator (3) and the second accumulator (11) still there is pressure, pressure oil is the most still had to enter the rodless cavity of the booster valve (5) on front wheel brake (10) and rear wheel brake (13), thus front wheel brake (10) and rear wheel brake (13) produce braking, so it is difficult to cause vehicle accident.
Owing to compressed-air actuated flow velocity is less than 6m/s more than the flow velocity of hydraulic oil, the flow velocity of general hydraulic oil, the flow velocity of hydraulic oil is designed as 2m/s by the present invention, and compressed-air actuated flow velocity is designed as 20 m/s.It is gas passage due to dual air brake valve (2) to the first Pneumatical hydraulic value (4) and the second Pneumatical hydraulic value (12) and compressed air flow velocity is very fast, after so stepping on dual air brake valve (2), the response speed of front wheel brake (10) and rear wheel brake (13) is accelerated, therefore dual air brake valve (2) from front wheel brake (10) and rear wheel brake (13) farther out time, front wheel brake (10) and rear wheel brake (13) quickly can be made after stepping on dual air brake valve (2) to produce braking.So do not have braking hysteresis phenomenon, be difficult to cause vehicle accident.
Similarly during distant between front wheel brake (10) and rear wheel brake (13), due to dual air brake valve (2) to the first Pneumatical hydraulic value (4), second Pneumatical hydraulic value (12) is gas passage, the principle of flow rate of liquid it is more than according to gas flow rate, after driver steps on dual air brake valve (2), first Pneumatical hydraulic value (4), the time difference of the second Pneumatical hydraulic value (12) action response can shorten, so front wheel brake (10) can be relatively short with the time difference that rear wheel brake (13) responds, the braking time of rear wheel brake will not be the most delayed, do not interfere with braking ability, it is difficult to cause vehicle accident.
Benefit of the invention is that: (1) still has pressure by accumulator can be realized hydraulic oil after engine misses as power source, and can carry out power brake, so will not cause vehicle accident.(2) it is more than the principle of flow rate of liquid by being set to gas passage by between dual air brake valve to Pneumatical hydraulic value according to gas flow rate, only between the brake cylinder on Pneumatical hydraulic value to brake, it is set to hydraulic channel, the response speed making brake is accelerated, so do not have braking hysteresis phenomenon, be difficult to cause vehicle accident.(3) it is more than the principle of flow rate of liquid by being set to gas passage by between dual air brake valve to Pneumatical hydraulic value according to gas flow rate, only between the brake cylinder on Pneumatical hydraulic value to brake, it is set to hydraulic channel, when front wheel brake, rear wheel brake are distant, the time difference that front wheel brake responds with rear wheel brake is relatively short, rear service brake will not be the most delayed, do not interfere with braking ability, be difficult to cause vehicle accident.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and the embodiment that is given, the present invention is further illustrated:
nullAs shown in Figure 1，A kind of vehicle booster brake unit，Including arrestment mechanism 50、Front wheel brake 10 and rear wheel brake 13，Described arrestment mechanism 50 includes booster valve 5、Brake valve 6、Lubricating cup 7、Repairing check valve 8 and brake cylinder 9，Described booster valve 5 has first piston bar 5-1 and first piston 5-2，Described brake valve 6 has the second piston rod 6-1 and the second piston 6-2，The first piston bar 5-1 of described booster valve 5 and the second piston rod 6-1 of brake valve 6 is fixing to be connected or integral，Described lubricating cup 7 is connected with the rodless cavity of brake valve 6 by check valve 8，And the rodless cavity of brake valve 6 is connected with the rodless cavity of brake cylinder 9，3rd piston rod 9-1 of brake cylinder 9 is connected with front wheel brake 10 and rear wheel brake 13 respectively，The described lubricating cup 7 setting height(from bottom) on vehicle is higher than the brake cylinder 9 setting height(from bottom) on vehicle，Its improvement is:
nullAlso include gas bag 1、Dual air brake valve 2、First accumulator 3、First Pneumatical hydraulic value 4、Second accumulator 11 and the second Pneumatical hydraulic value 12，Described arrestment mechanism 50 is installed on front wheel brake 10 and rear wheel brake 13 respectively，Described dual air brake valve 2 air inlet P1、Perform mouth A1 respectively with gas bag 1、The control mouth K mouth of the first Pneumatical hydraulic value 4 connects，The inlet P mouth of the first Pneumatical hydraulic value 4、Perform mouth A mouth respectively with the first accumulator 3、The rodless cavity of the booster valve 5 on front wheel brake 10 connects，Described dual air brake valve 2 air inlet P2、Perform mouth A2 respectively with gas bag 1、The control mouth K mouth of the second Pneumatical hydraulic value 12 connects，The inlet P mouth of the second Pneumatical hydraulic value 12、Perform mouth A mouth respectively with the second accumulator 11、The rodless cavity of the booster valve 5 on rear wheel brake 13 connects.
The length of the hydraulic channel of described second accumulator 11 to the second Pneumatical hydraulic value 12 is less than the length of the hydraulic channel of the first accumulator 3 to the first Pneumatical hydraulic value 4, and the length of booster valve 5 hydraulic channel on described second Pneumatical hydraulic value 12 to rear wheel brake 13 is less than the length of booster valve 5 hydraulic channel of the first Pneumatical hydraulic value 4 to front wheel brake 10.The principle of flow rate of liquid it is more than according to gas flow rate, after driver steps on dual air brake valve 2, the time difference that front wheel brake 10 responds with rear wheel brake 13 can shorten further, pressure oil enters the time of the brake cylinder 9 on rear wheel brake 13 more will not be the most delayed, improve braking ability further, be difficult to cause vehicle accident.
The length of the gas passage of described dual air brake valve 2 to the second Pneumatical hydraulic value 12 is less than the length of the gas passage of dual air brake valve 2 to the first Pneumatical hydraulic value 4.So after driver steps on dual air brake valve 2, the response time of rear wheel brake 13 can be prior to the response time of front wheel brake 10, therefore adjustable rear wheel brake 13 and the retroaction sequence of front wheel brake 10.
Also having relief valve 14, described relief valve 14 is connected with gas bag 1.
When driver step on dual air brake valve 2 be braked time, the air inlet P1 mouth of dual air brake valve 2 communicates with performing mouth A1 mouth, in gas bag 1, pressure air enters the control mouth K mouth of the first Pneumatical hydraulic value 4 through dual air brake valve 2, at this moment the inlet P mouth of the first Pneumatical hydraulic value 4 communicates with performing mouth A mouth, pressure oil in accumulator 3 enters the rodless cavity of the booster valve 5 on front wheel brake 10, first piston 5-2 is promoted to drive first piston bar 5-1 to move, connect owing to first piston bar 5-1 and the second piston rod 6-1 is fixing, so the second piston rod 6-1 drives the second piston 6-2 to move, the hydraulic oil making the rodless cavity of brake valve 6 enters brake cylinder 9, so that front wheel brake 10 produces braking.
Simultaneously, the air inlet P2 mouth of dual air brake valve 2 communicates with performing mouth A2 mouth, in gas bag 1, pressure air enters the control mouth K mouth of the second Pneumatical hydraulic value 12 through dual air brake valve 2, at this moment the inlet P mouth of the second Pneumatical hydraulic value 12 communicates with performing mouth A mouth, pressure oil in accumulator 11 enters the rodless cavity of the booster valve 5 on rear wheel brake 13, first piston 5-2 is promoted to drive first piston bar 5-1 to move, connect owing to first piston bar 5-1 and the second piston rod 6-1 is fixing, so the second piston rod 6-1 drives the second piston 6-2 to move, the hydraulic oil making the rodless cavity of brake valve 6 enters brake cylinder 9, so that rear wheel brake 13 produces braking.
When after engine misses, owing to gas bag still having pressed gas, when driver step on dual air brake valve 2 be braked time, in gas bag 1, pressure air remains to enter control mouth K mouth and the control mouth K mouth of the second Pneumatical hydraulic value 12 of the first Pneumatical hydraulic value 4 through dual air brake valve 2, and first the hydraulic oil of accumulator 3 and the second accumulator 11 still there is pressure, pressure oil is the most still had to enter the rodless cavity of the booster valve 5 on front wheel brake 10 and rear wheel brake 13, thus front wheel brake 10 and rear wheel brake 13 produce braking, so it is difficult to cause vehicle accident.
Owing to compressed-air actuated flow velocity is less than 6m/s more than the flow velocity of hydraulic oil, the flow velocity of general hydraulic oil, the flow velocity of hydraulic oil is designed as 2m/s by the present invention, and compressed-air actuated flow velocity is designed as 20 m/s.It is gas passage due to dual air brake valve 2 to the first Pneumatical hydraulic value 4 and the second Pneumatical hydraulic value 12 and compressed air flow velocity is very fast, after so stepping on dual air brake valve 2, the response speed of front wheel brake 10 and rear wheel brake 13 is accelerated, therefore dual air brake valve 2 from front wheel brake 10 and rear wheel brake 13 farther out time, front wheel brake 10 and rear wheel brake 13 quickly can be made after stepping on dual air brake valve 2 to produce braking.So do not have braking hysteresis phenomenon, be difficult to cause vehicle accident.
Similarly during distant between front wheel brake 10 and rear wheel brake 13, due to dual air brake valve the 2 to the first Pneumatical hydraulic value 4, second Pneumatical hydraulic value 12 is gas passage, the principle of flow rate of liquid it is more than according to gas flow rate, after driver steps on dual air brake valve 2, first Pneumatical hydraulic value 4, the time difference of the second Pneumatical hydraulic value 12 action response can shorten, so front wheel brake 10 can be relatively short with the time difference that rear wheel brake 13 responds, the braking time of rear wheel brake will not be the most delayed, do not interfere with braking ability, it is difficult to cause vehicle accident.
Claims (4)
- null1. the braking method of a vehicle booster brake unit，Including arrestment mechanism (50)、Front wheel brake (10) and rear wheel brake (13)，Described arrestment mechanism (50) includes booster valve (5)、Brake valve (6)、Lubricating cup (7)、Repairing check valve (8) and brake cylinder (9)，Described booster valve (5) has first piston bar (5-1) and first piston (5-2)，Described brake valve (6) has the second piston rod (6-1) and the second piston (6-2)，The first piston bar (5-1) of described booster valve (5) is fixing with second piston rod (6-1) of brake valve (6) to be connected or integral，Described lubricating cup (7) is connected with the rodless cavity of brake valve (6) by check valve (8)，And the rodless cavity of brake valve (6) is connected with the rodless cavity of brake cylinder (9)，3rd piston rod (9-1) of brake cylinder (9) is connected with front wheel brake (10) and rear wheel brake (13) respectively，The described lubricating cup (7) setting height(from bottom) on vehicle is higher than the brake cylinder (9) setting height(from bottom) on vehicle，Also include gas bag (1)、Dual air brake valve (2)、First accumulator (3)、First Pneumatical hydraulic value (4)、Second accumulator (11) and the second Pneumatical hydraulic value (12)，Described arrestment mechanism (50) is installed on front wheel brake (10) and rear wheel brake (13) respectively，Described dual air brake valve (2) air inlet P1、Perform mouth A1 respectively with gas bag (1)、The control mouth K mouth of the first Pneumatical hydraulic value (4) connects，The inlet P mouth of the first Pneumatical hydraulic value (4)、Perform mouth A mouth respectively with the first accumulator (3)、The rodless cavity of the booster valve (5) on front wheel brake (10) connects，Described dual air brake valve (2) air inlet P2、Perform mouth A2 respectively with gas bag (1)、The control mouth K mouth of the second Pneumatical hydraulic value (12) connects，The inlet P mouth of the second Pneumatical hydraulic value (12)、Perform mouth A mouth respectively with the second accumulator (11)、The rodless cavity of the booster valve (5) on rear wheel brake (13) connects；The work process of this braking method is as follows:nullWhen driver step on dual air brake valve (2) be braked time，The air inlet P1 mouth of dual air brake valve (2) communicates with performing mouth A1 mouth，In gas bag (1), pressure air enters the control mouth K mouth of the first Pneumatical hydraulic value (4) through dual air brake valve (2)，At this moment the inlet P mouth of the first Pneumatical hydraulic value (4) communicates with performing mouth A mouth，Pressure oil in first accumulator (3) enters the rodless cavity of the booster valve (5) on front wheel brake (10)，First piston (5-2) is promoted to drive first piston bar (5-1) mobile，It is connected owing to first piston bar (5-1) and the second piston rod (6-1) are fixing，So the second piston rod (6-1) drives the second piston (6-2) mobile，The hydraulic oil making the rodless cavity of brake valve (6) enters brake cylinder (9)，So that front wheel brake (10) produces braking；Simultaneously, the air inlet P2 mouth of dual air brake valve (2) communicates with performing mouth A2 mouth, in gas bag (1), pressure air enters the control mouth K mouth of the second Pneumatical hydraulic value (12) through dual air brake valve (2), at this moment the inlet P mouth of the second Pneumatical hydraulic value (12) communicates with performing mouth A mouth, pressure oil in second accumulator (11) enters the rodless cavity of the booster valve (5) on rear wheel brake (13), first piston (5-2) is promoted to drive first piston bar (5-1) mobile, it is connected owing to first piston bar (5-1) and the second piston rod (6-1) are fixing, so the second piston rod (6-1) drives the second piston (6-2) mobile, the hydraulic oil making the rodless cavity of brake valve (6) enters brake cylinder (9), so that rear wheel brake (13) produces braking；When after engine misses, owing to gas bag still having pressed gas, when driver step on dual air brake valve (2) be braked time, in gas bag (1), pressure air remains to enter the control mouth K mouth of the first Pneumatical hydraulic value (4) and the control mouth K mouth of the second Pneumatical hydraulic value (12) through dual air brake valve (2), and first the hydraulic oil of accumulator (3) and the second accumulator (11) still there is pressure, pressure oil is the most still had to enter the rodless cavity of the booster valve (5) on front wheel brake (10) and rear wheel brake (13), thus front wheel brake (10) and rear wheel brake (13) produce braking, so it is difficult to cause vehicle accident；nullOwing to compressed-air actuated flow velocity is more than the flow velocity of hydraulic oil，The flow velocity of general hydraulic oil is less than 6m/s,The flow velocity of hydraulic oil is designed as 2m/s by the present invention，And compressed-air actuated flow velocity is designed as 20 m/s，It is gas passage due to dual air brake valve (2) to the first Pneumatical hydraulic value (4) and the second Pneumatical hydraulic value (12) and compressed air flow velocity is very fast，After so stepping on dual air brake valve (2)，The response speed of front wheel brake (10) and rear wheel brake (13) is accelerated，Therefore dual air brake valve (2) from front wheel brake (10) and rear wheel brake (13) farther out time，Front wheel brake (10) and rear wheel brake (13) quickly can be made after stepping on dual air brake valve (2) to produce braking，So do not have braking hysteresis phenomenon，It is difficult to cause vehicle accident；Similarly during distant between front wheel brake (10) and rear wheel brake (13), due to dual air brake valve (2) to the first Pneumatical hydraulic value (4), second Pneumatical hydraulic value (12) is gas passage, the principle of flow rate of liquid it is more than according to gas flow rate, after driver steps on dual air brake valve (2), first Pneumatical hydraulic value (4), the time difference of the second Pneumatical hydraulic value (12) action response can shorten, so front wheel brake (10) can be relatively short with the time difference that rear wheel brake (13) responds, the braking time of rear wheel brake will not be the most delayed, do not interfere with braking ability, it is difficult to cause vehicle accident.
- The braking method of vehicle booster brake unit the most according to claim 1, it is characterized in that: the length of described second accumulator (11) to the hydraulic channel of the second Pneumatical hydraulic value (12) is less than the length of the first accumulator (3) to the hydraulic channel of the first Pneumatical hydraulic value (4), and the length of booster valve (5) hydraulic channel on described second Pneumatical hydraulic value (12) to rear wheel brake (13) is less than the length of the first Pneumatical hydraulic value (4) to booster valve (5) hydraulic channel of front wheel brake (10).
- The braking method of vehicle booster brake unit the most according to claim 2, it is characterised in that: the length of described dual air brake valve (2) to the gas passage of the second Pneumatical hydraulic value (12) is less than the length of dual air brake valve (2) to the gas passage of the first Pneumatical hydraulic value (4).
- The braking method of vehicle booster brake unit the most according to claim 1, it is characterised in that: also having relief valve (14), described relief valve (14) is connected with gas bag (1).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810254329.9A CN108394391A (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
| CN201810411418.XA CN108501918A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus, arrestment mechanism |
| CN201810308369.7A CN108501916A (en) | 2016-06-13 | 2016-06-13 | After a kind of engine misses can power brake vehicle booster brake apparatus |
| CN201810308376.7A CN108437962A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus braking method |
| CN201810308371.4A CN108437961A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus |
| CN201610410452.6A CN106004841B (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410452.6A CN106004841B (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308369.7A Division CN108501916A (en) | 2016-06-13 | 2016-06-13 | After a kind of engine misses can power brake vehicle booster brake apparatus |
| CN201810308376.7A Division CN108437962A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus braking method |
| CN201810254329.9A Division CN108394391A (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
| CN201810411418.XA Division CN108501918A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus, arrestment mechanism |
| CN201810308371.4A Division CN108437961A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106004841A true CN106004841A (en) | 2016-10-12 |
| CN106004841B CN106004841B (en) | 2018-06-29 |
Family
ID=57090294
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308369.7A Pending CN108501916A (en) | 2016-06-13 | 2016-06-13 | After a kind of engine misses can power brake vehicle booster brake apparatus |
| CN201810308371.4A Pending CN108437961A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus |
| CN201810308376.7A Withdrawn CN108437962A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus braking method |
| CN201810254329.9A Pending CN108394391A (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
| CN201810411418.XA Withdrawn CN108501918A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus, arrestment mechanism |
| CN201610410452.6A Active CN106004841B (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308369.7A Pending CN108501916A (en) | 2016-06-13 | 2016-06-13 | After a kind of engine misses can power brake vehicle booster brake apparatus |
| CN201810308371.4A Pending CN108437961A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus |
| CN201810308376.7A Withdrawn CN108437962A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus braking method |
| CN201810254329.9A Pending CN108394391A (en) | 2016-06-13 | 2016-06-13 | A kind of braking method of vehicle booster brake apparatus |
| CN201810411418.XA Withdrawn CN108501918A (en) | 2016-06-13 | 2016-06-13 | After engine misses can power brake vehicle booster brake apparatus, arrestment mechanism |
Country Status (1)
| Country | Link |
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| CN (6) | CN108501916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116176539A (en) * | 2023-04-24 | 2023-05-30 | 安徽中科星驰自动驾驶技术有限公司 | Anti-collision detection device applied to automatic driving |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3128222A1 (en) * | 2019-02-05 | 2020-08-13 | Knorr Brake Company, LLC | System and method for emergency brake control |
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- 2016-06-13 CN CN201810308369.7A patent/CN108501916A/en active Pending
- 2016-06-13 CN CN201810308371.4A patent/CN108437961A/en active Pending
- 2016-06-13 CN CN201810308376.7A patent/CN108437962A/en not_active Withdrawn
- 2016-06-13 CN CN201810254329.9A patent/CN108394391A/en active Pending
- 2016-06-13 CN CN201810411418.XA patent/CN108501918A/en not_active Withdrawn
- 2016-06-13 CN CN201610410452.6A patent/CN106004841B/en active Active
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| US4068899A (en) * | 1976-02-25 | 1978-01-17 | Massey-Ferguson Services N.V. | Braking systems |
| CN2924108Y (en) * | 2006-05-29 | 2007-07-18 | 徐永江 | Pneumatical hydraulic value |
| CN103879394A (en) * | 2014-03-28 | 2014-06-25 | 常州科研试制中心有限公司 | Stopping brake system of trailer used under coal mine shaft |
| CN104442267A (en) * | 2014-11-10 | 2015-03-25 | 三一汽车起重机械有限公司 | Oil gas suspension system, engineering vehicle and crane |
| CN204641733U (en) * | 2015-04-09 | 2015-09-16 | 连云港天明装备有限公司 | A kind of underground coal mine shovel car gas control accumulator valve group |
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| CN116176539A (en) * | 2023-04-24 | 2023-05-30 | 安徽中科星驰自动驾驶技术有限公司 | Anti-collision detection device applied to automatic driving |
| CN116176539B (en) * | 2023-04-24 | 2023-07-11 | 安徽中科星驰自动驾驶技术有限公司 | Anti-collision detection device applied to automatic driving |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106004841B (en) | 2018-06-29 |
| CN108501916A (en) | 2018-09-07 |
| CN108501918A (en) | 2018-09-07 |
| CN108437962A (en) | 2018-08-24 |
| CN108394391A (en) | 2018-08-14 |
| CN108437961A (en) | 2018-08-24 |
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