CN108454602A - A kind of novel evacuated brake assist system and its operating method - Google Patents
A kind of novel evacuated brake assist system and its operating method Download PDFInfo
- Publication number
- CN108454602A CN108454602A CN201810196756.6A CN201810196756A CN108454602A CN 108454602 A CN108454602 A CN 108454602A CN 201810196756 A CN201810196756 A CN 201810196756A CN 108454602 A CN108454602 A CN 108454602A
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- Prior art keywords
- vacuum
- pump
- electric
- control system
- oil
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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
- B60T13/10—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
- B60T13/24—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 gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
Abstract
The invention discloses a kind of novel evacuated brake assist system and its operating methods, including electric boosted control system, mechanically aided control system and the vacuum booster in parallel with electric boosted control system, mechanically aided control system, it is provided with pressure sensor on the vacuum booster, the electric boosted control system includes electric vacuum pump, the mechanically aided control system includes oil-sealed rotary pump, and the electric vacuum pump is in parallel with oil-sealed rotary pump with vacuum booster.The invention has the advantages that：This novel evacuated brake assist system and its operating method can significantly reduce the risk of vacuum boost system failure, improve security performance.
Description
Technical field
The present invention relates to brake assist system, more particularly to a kind of novel evacuated brake assist system and its operating method.
Background technology
The Chinese patent that notification number is CN103481883 discloses vacuum boost system and its side of a kind of electric vehicle
Method, including vacuum boost system, gas storage part, sensor, vacuum pump and driving motor.When sensor detects that vacuum degree is less than
Driving motor driving electric vehicle slows down or stops when alarming value.This vacuum boost system being capable of auxiliary brake braking electricity
Electrical automobile effectively can also actively reduce running speed or parking when vacuum boost system breaks down, and ensure rider
The safety of member.
At present on electric vehicle common vacuum brake force aid system usually only include a vacuum pump and a vacuum tank,
In this vacuum brake force aid system, brake failure is easily led to when vacuum pump or vacuum tank failure, to cause traffic thing
Therefore.
Invention content
The object of the present invention is to provide a kind of novel evacuated brake assist systems.This novel evacuated brake assist system and
Its operating method can significantly reduce the risk of vacuum boost system failure, improve security performance.
The present invention above-mentioned technical purpose technical scheme is that：A kind of novel evacuated brake power-assisted
System, including electric boosted control system, mechanically aided control system and with electric boosted control system, mechanically aided control
The vacuum booster of system parallel connection is provided with pressure sensor, the electric boosted control system packet on the vacuum booster
Include electric vacuum pump, the mechanically aided control system includes oil-sealed rotary pump, the electric vacuum pump and oil-sealed rotary pump with
Vacuum booster is in parallel.
After above-mentioned technical proposal, when driver's pushes pedals, the pressure sensor inspection on vacuum booster
The vacuum degree of vacuum booster is surveyed, and is uploaded to electric boosted control system.If the vacuum degree of vacuum booster is electric boosted
When the requirement of vacuum degree is not achieved after control system detection, electric boosted control system control electric vacuum pump running, to make
Vacuum degree can be improved by obtaining electric vacuum pump, so that vacuum booster normal operation.When the vacuum degree of vacuum booster reaches
To when requiring, electric boosted control system will not operate, and only need mechanically aided control system that oil-sealed rotary pump is driven to improve
Vacuum degree.Above-mentioned setting can be vacuumized by electric vacuum pump when oil-sealed rotary pump breaks down in order to prevent, to
Reach the requirement of required vacuum degree, so that it is guaranteed that safety.
The present invention is further arranged to：The electric boosted control system further includes accumulator and entire car controller, described
Accumulator is in parallel with electric vacuum pump and entire car controller respectively, and the entire car controller is connect with electric vacuum pump.
After above-mentioned technical proposal, accumulator provides power for electric vacuum pump and entire car controller, to
When vacuum degree deficiency, accumulator is capable of providing the running of Electric control entire car controller, is vacuumized to start electric vacuum pump,
Reach required vacuum degree.
The present invention is further arranged to：The mechanically aided control system further includes driving motor, the driving motor with
Oil-sealed rotary pump is connected.
After above-mentioned technical proposal, driving motor can drive oil-sealed rotary pump to operate, so that machinery is true
Sky pump running vacuumizes.
The present invention is further arranged to：Pass through vacuum between the electric vacuum pump, oil-sealed rotary pump and vacuum booster
Pipe connects, and pressure release check valve is provided on the vacuum tube.
It after above-mentioned technical proposal, is connected by vacuum tube, and pressure release check valve is set so that work as vacuum degree
Air inlet is opened when too low, to keep vacuum degree in normal range (NR).
The present invention is further arranged to：The vacuum booster is connected with entire car controller, the entire car controller side
It is connected with alarming instrument.
After above-mentioned technical proposal, by the way that vacuum booster is connect with entire car controller so that vacuum servo
The information of pressure sensor on device can be migrated into directly in entire car controller, improve being quick on the draw for entire car controller
Degree.Meanwhile alarming instrument is set so that when entire car controller detects that vacuum degree is too low, fault message can be sent to
Alarming instrument, to remind user to test in time.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of operating method of novel evacuated brake assist system, includes the following steps：
（1）After the power is turned on, pressure sensor monitors the vacuum degree of vacuum booster to vehicle in real time, is reported to entire car controller；
（2）Oil-sealed rotary pump uses the output shaft of motor as power source, and when driving motor rotates, pump i.e. movement vacuumizes；
（3）Pressure release check valve is installed on vacuum tube, air inlet is opened when vacuum degree is too low, to keep vacuum degree in normal range (NR)
It is interior；
（4）Electric vacuum pump is in parallel by vacuum tube with oil-sealed rotary pump, is connected together with vacuum booster；When one of pump
When failure, when entire car controller detects vacuum degree deficiency（When stationary vehicle/starting, when mechanical vacuum failure of pump）, control electricity
Dynamic vacuum pump operating, to ensure safety；
（5）It is operated for oil-sealed rotary pump under usual feelings pressure condition, electric vacuum pump is only taken out as supplement in special circumstances true
It is empty.
After above-mentioned technical proposal, after vehicle powers on, pressure sensor receives driver's pushes pedals
Pressure information, to which pressure information passed to entire car controller.Whether entire car controller can reach institute according to vacuum degree
Need vacuum level requirements and whether start electric vacuum pump.Oil-sealed rotary pump improves vacuum degree by driving motor, to reduce
The difficulty that pedal is trampled.Air inlet is opened to keep vacuum degree in normal range (NR) by pressure release check valve when vacuum degree is too low.
When oil-sealed rotary pump breaks down, when entire car controller detects that vacuum degree is relatively low, control electric vacuum pump running ensures true
Reciprocal of duty cycle is under required vacuum degree state.
In conclusion the invention has the advantages that：
The creation point of the present invention is：Since oil-sealed rotary pump may break down in the running time under other factors,
In the state of more urgent, the difficulty that can cause to brake greatly increases, so that the sensitivity decrease of skidding, may draw
Hair accident.Therefore, the present invention is by increasing electric vacuum pump and entire car controller so that the energy when oil-sealed rotary pump breaks down
It is enough operated by vehicle control unit controls electric vacuum pump, so that vacuum degree is maintained at security level, it is not easy to cause thing
Therefore.Existing brake assist system is usually, by automatic braking so that vehicle stops, preventing when oil-sealed rotary pump breaks down
Accident only occurs.But above-mentioned processing mode makes automobile that cannot be operated again before repairing, results in the need for utilizing trailer will
Vehicle is drawn maintenace point and repairs, more inconvenient.And the present invention is by being arranged electric vacuum pump so that in oil-sealed rotary pump
It can ensure the normal operation of automobile when failure.Simultaneously by the setting of alarming instrument, driver is reminded to drive maintenace point pair
Oil-sealed rotary pump repairs.A reason of oil-sealed rotary pump is arranged again by the way that electric vacuum pump is arranged is electronic true
It is more sensitive that sky pump is compared to oil-sealed rotary pump, can react failure rapidly.In addition, since electric vacuum pump only exists
It just starts operation in special circumstances, so that only needing setting accumulator that can meet the requirements, reduces the wasting of resources.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram of embodiment concrete structure.
Reference numeral：1, electric boosted control system；2, mechanically aided control system；3, vacuum booster；4, accumulator；
5, entire car controller；6, electric vacuum pump；7, oil-sealed rotary pump；8, driving motor；9, vacuum tube；10, pressure release check valve；11、
Pressure sensor；12, alarming instrument.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
As shown in Figure 1, a kind of novel evacuated brake assist system, including electric boosted control system 1, mechanically aided control
System 2 and the vacuum booster 3 in parallel with electric boosted control system 1, mechanically aided control system 2, on vacuum booster 3
It is provided with pressure sensor 11.
As shown in Figure 1 and Figure 2, electric boosted control system 1 includes 12V accumulators 4, entire car controller 5 and Motorized vacuum
Pump 6.Mechanically aided control system 2 includes driving motor 8 and oil-sealed rotary pump 7.Electric vacuum pump 6 is logical with oil-sealed rotary pump 7
It is in parallel with vacuum booster 3 to cross vacuum tube 9.Pressure release check valve 10 is provided on vacuum tube 9.Vacuum booster 3 and full-vehicle control
Device 5 connects.Entire car controller 5 is connected with alarming instrument 12.
Accumulator 4 is connect with entire car controller 5 and electric vacuum pump 6, to entire car controller 5 and Motorized vacuum
6 power supply of pump.
A kind of operating method of novel evacuated brake assist system, includes the following steps：
（1）After the power is turned on, pressure sensor 11 monitors the vacuum degree of vacuum booster 3 to vehicle in real time, is reported to entire car controller 5；
（2）Oil-sealed rotary pump 7 uses the output shaft of driving motor 8 as power source, and when driving motor 8 rotates, pump moves
It vacuumizes；
（3）Pressure release check valve 10 is installed on vacuum tube 9, air inlet is opened when vacuum degree is too low, to keep vacuum degree in normal model
In enclosing；
（4）Electric vacuum pump 6 is in parallel by vacuum tube 9 with oil-sealed rotary pump 7, is connected together with vacuum booster 3；When wherein one
When a failure of pump, when entire car controller 5 detects vacuum degree deficiency（When stationary vehicle/starting, when 7 failure of oil-sealed rotary pump）,
It controls electric vacuum pump 6 to operate, to ensure safety；
（5）It is operated for oil-sealed rotary pump 7 under usual feelings pressure condition, electric vacuum pump 6 is only taken out as supplement in special circumstances
Vacuum.
Working effect：
Driving motor 8（That is the power motor of vehicle）An oil-sealed rotary pump 7 is integrated, which uses driving motor 8
Output shaft as power source, when driving motor 8 rotates, pump i.e. movement vacuumize.12V accumulators 4 are used as electric vacuum pump 6
Power supply.Electric vacuum pump 6 is in parallel by vacuum tube 9 with oil-sealed rotary pump 7, is connected together with vacuum booster 3.Pass through parallel connection
Mode, it is ensured that vacuum degree reduces the risk of vacuum boost system failure.Pressure sensor 11 is installed on vacuum booster 3.Pressure
Sensor 11 reports vacuum degree to entire car controller 5, when entire car controller 5 detects vacuum degree deficiency（Stationary vehicle/starting
When, when 7 failure of oil-sealed rotary pump）, the control operating of electric vacuum pump 6, to ensure safety.Pressure release check valve is installed on vacuum tube 9
10, air inlet is opened when vacuum degree is too low, to keep vacuum degree in normal range (NR).Under normal conditions, it is that oil-sealed rotary pump 7 is transported
Turn, electric vacuum pump 6 is only vacuumized as supplement in special circumstances.When entire car controller 5 detects system exception（Such as machine
7 failure of tool vacuum pump, 6 failure of electric vacuum pump, 9 gas leakage of vacuum tube etc.）Fault message can be sent to instrument, remind use in time
It is overhauled at family.
Claims (6)
1. a kind of novel evacuated brake assist system, it is characterized in that：Including electric boosted control system (1), mechanically aided control
System (2) and the vacuum booster (3) in parallel with electric boosted control system (1), mechanically aided control system (2), it is described
Pressure sensor (11) is provided on vacuum booster (3), the electric boosted control system (1) includes electric vacuum pump (6),
The mechanically aided control system (2) includes oil-sealed rotary pump (7), the electric vacuum pump (6) and oil-sealed rotary pump (7) with it is true
Empty booster (3) is in parallel.
2. a kind of novel evacuated brake assist system according to claim 1, it is characterized in that：The electric boosted control system
System (1) further includes accumulator (4) and entire car controller (5), the accumulator (4) respectively with electric vacuum pump (6) and vehicle
Controller (5) is in parallel, and the entire car controller (5) connect with electric vacuum pump (6).
3. a kind of novel evacuated brake assist system according to claim 1, it is characterized in that：The mechanically aided control system
System (2) further includes driving motor (8), and the driving motor (8) is connected with oil-sealed rotary pump (7).
4. a kind of novel evacuated brake assist system according to claim 1, it is characterized in that：The electric vacuum pump (6),
It is connect by vacuum tube (9) between oil-sealed rotary pump (7) and vacuum booster (3), pressure release list is provided on the vacuum tube (9)
To valve (10).
5. a kind of novel evacuated brake assist system according to claim 2, it is characterized in that：The vacuum booster (3)
It is connected with entire car controller (5), entire car controller (5) side is connected with alarming instrument (12).
6. a kind of operating method of novel evacuated brake assist system, it is characterized in that：Include the following steps：
（1）After the power is turned on, pressure sensor (11) monitors the vacuum degree of vacuum booster (3) to vehicle in real time, is reported to full-vehicle control
Device (5)；
（2）Oil-sealed rotary pump (7) uses the output shaft of driving motor (8) as power source, when driving motor (8) rotate, pump
I.e. movement vacuumizes；
（3）Pressure release check valve (10) is installed on vacuum tube (9), air inlet is opened when vacuum degree is too low, to keep vacuum degree just
In normal range；
（4）Electric vacuum pump (6) is in parallel by vacuum tube (9) with oil-sealed rotary pump (7), is connected together with vacuum booster (3)；
When one of failure of pump, when entire car controller (5) detects vacuum degree deficiency（When stationary vehicle/starting, oil-sealed rotary pump
(7) when failure）, control electric vacuum pump (6) operating, to ensure safety；
（5）It is operated for oil-sealed rotary pump (7) under usual feelings pressure condition, electric vacuum pump (6) is only as benefit in special circumstances
It fills and vacuumizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196756.6A CN108454602A (en) | 2018-03-10 | 2018-03-10 | A kind of novel evacuated brake assist system and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196756.6A CN108454602A (en) | 2018-03-10 | 2018-03-10 | A kind of novel evacuated brake assist system and its operating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108454602A true CN108454602A (en) | 2018-08-28 |
Family
ID=63217394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810196756.6A Pending CN108454602A (en) | 2018-03-10 | 2018-03-10 | A kind of novel evacuated brake assist system and its operating method |
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| Country | Link |
|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011085252A1 (en) * | 2011-10-26 | 2013-05-02 | Robert Bosch Gmbh | Method and device for determining a fault condition in a brake booster system |
| CN103085796A (en) * | 2011-11-02 | 2013-05-08 | 财团法人车辆研究测试中心 | Brake power-assisting source system with brake kinetic energy recovery and failure protection functions |
| CN204750140U (en) * | 2015-06-05 | 2015-11-11 | 江苏陆地方舟新能源电动汽车有限公司 | Operational system of driving motor and vacuum pump |
| CN204821534U (en) * | 2015-08-14 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Booster assembly |
| CN205469032U (en) * | 2016-01-14 | 2016-08-17 | 重庆长安汽车股份有限公司 | Pure electric vehicles's vacuum servo auxiliary system |
-
2018
- 2018-03-10 CN CN201810196756.6A patent/CN108454602A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011085252A1 (en) * | 2011-10-26 | 2013-05-02 | Robert Bosch Gmbh | Method and device for determining a fault condition in a brake booster system |
| CN103085796A (en) * | 2011-11-02 | 2013-05-08 | 财团法人车辆研究测试中心 | Brake power-assisting source system with brake kinetic energy recovery and failure protection functions |
| CN204750140U (en) * | 2015-06-05 | 2015-11-11 | 江苏陆地方舟新能源电动汽车有限公司 | Operational system of driving motor and vacuum pump |
| CN204821534U (en) * | 2015-08-14 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Booster assembly |
| CN205469032U (en) * | 2016-01-14 | 2016-08-17 | 重庆长安汽车股份有限公司 | Pure electric vehicles's vacuum servo auxiliary system |
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Application publication date: 20180828 |