CN108657272A - Electro-motive vehicle steering boost system and method and electro-motive vehicle - Google Patents
Electro-motive vehicle steering boost system and method and electro-motive vehicle Download PDFInfo
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- CN108657272A CN108657272A CN201710208885.8A CN201710208885A CN108657272A CN 108657272 A CN108657272 A CN 108657272A CN 201710208885 A CN201710208885 A CN 201710208885A CN 108657272 A CN108657272 A CN 108657272A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000005611 electricity Effects 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims description 16
- 230000000740 bleeding effect Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 24
- 230000006378 damage Effects 0.000 abstract description 11
- 208000027418 Wounds and injury Diseases 0.000 abstract description 10
- 208000014674 injury Diseases 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
- B62D5/14—Rotary motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
This disclosure relates to which a kind of electro-motive vehicle steering boost system and method and electro-motive vehicle, are related to vehicular field.The system includes receiving module, control module, air motor and air accumulator, wherein：The air accumulator provides the gas of power for being stored as the air motor；The receiving module, for receiving turn signal；The control module provides power for when the receiving module receives the turn signal, controlling the air accumulator to the air motor；The air motor, power for being provided using the air accumulator provide power steering.The system can ensure, when needing under the abnormal conditions of vehicle broken height piezoelectricity occurs in electro-motive vehicle, to disconnect high-voltage electricity immediately, and keep steering power-assisted, to avoid injury of no timely broken height piezoelectricity to vehicle and driver to a certain extent.
Description
Technical field
This disclosure relates to vehicular field, and in particular, to a kind of electro-motive vehicle steering boost system and method and electricity
Drive vehicle.
Background technology
In the prior art, the boosting method of the steering of electro-motive vehicle usually all uses electric power-assisted.In electric drive vehicle
In driving process, when under the abnormal conditions for needing vehicle broken height piezoelectricity, in order to ensure driving safety, abnormal conditions is prevented to hinder
Evil vehicle and driver and passenger will not disconnect high-voltage electricity, but first steering can be kept to help immediately when speed is more than certain value
Power state just will disconnect high-voltage electricity after a certain period of time.In this way, within the time for keeping steering power-assisted state, electro-motive vehicle
Abnormal conditions it is possible that deteriorating, and electro-motive vehicle is not turned off high-voltage electricity at this time, driver and passenger may be made to send out
The accidents such as raw electric shock generate a degree of injury to electro-motive vehicle and driver and passenger.
Invention content
Purpose of this disclosure is to provide a kind of electro-motive vehicle steering boost systems and method and electro-motive vehicle, this is
System is a kind of electro-motive vehicle steering boost system without high-voltage electricity, whole so as to ensure to occur needing in electro-motive vehicle
When under the abnormal conditions of vehicle broken height piezoelectricity, high-voltage electricity can be disconnected in time in the case where keeping steering power-assisted, thus
Injury of no timely broken height piezoelectricity to vehicle and driver is avoided to a certain extent.
To achieve the goals above, the disclosure provides a kind of electro-motive vehicle steering boost system, which includes receiving
Module, control module, air motor and air accumulator, wherein：
The air accumulator provides the gas of power for being stored as the air motor；
The receiving module, for receiving turn signal；
The control module, for when the receiving module receives the turn signal, control the air accumulator to
The air motor provides power；
The air motor, power for being provided using the air accumulator provide power steering.
Optionally, the control module by control the air accumulator air bleeding valve aperture come adjust the air accumulator to
The power that the air motor provides.
Optionally, the electro-motive vehicle steering boost system further includes inflation system, for being inflated for the air accumulator.
Optionally, the inflation system includes air pump motor controller, air pump motor and air pump, wherein：
The air pump motor controller, for being converted into the direct current of the power battery of the electro-motive vehicle to described
The alternating current of air pump motor power supply；
The air pump motor, for providing power for the air pump；
The air pump, for being inflated to the air accumulator.
Optionally, the inflation system further includes air pressure detection module, for detecting the air pressure in the air accumulator；
The air pump motor controller is additionally operable to stop when the air pressure detected reaches preset upper limit value to the air pump
Motor is powered.
Optionally, the air pump motor controller is additionally operable to disconnect when preset failure signal occurs in the electro-motive vehicle
With being electrically connected for the power battery, the high-voltage electricity needs of electro-motive vehicle described in the preset failure signal designation are disconnected.
The disclosure also provides a kind of electro-motive vehicle, which includes that electro-motive vehicle steering recited above helps
Force system.
The disclosure also provides a kind of electro-motive vehicle power steering method, is applied to electro-motive vehicle steering boost system,
The electro-motive vehicle steering boost system includes receiving module, control module, air motor and air accumulator；The method packet
It includes：
Turn signal is received by the receiving module；
When the receiving module receives the turn signal, the air accumulator is controlled to described from the control module
Air motor provides power；
The power that is there is provided using the air accumulator by the air motor provides power steering.
Optionally, the method further includes：
By the control module air accumulator is adjusted by controlling the aperture of the air bleeding valve of the air accumulator to described
The power that air motor provides.
Optionally, the electro-motive vehicle steering boost system further includes inflation system, and the inflation system includes air pump
Electric machine controller, air pump motor and air pump, this method further include：
The direct current of the power battery of the electro-motive vehicle is converted into the gas by the air pump motor controller
The alternating current of pump motor power supply；
By the air pump motor power is provided for the air pump；
It is inflated from the air pump to the air accumulator.
Optionally, this method further includes：
Detect the air pressure in the air accumulator；
When the air pressure detected reaches preset upper limit value, the air pump motor controller stops supplying to the air pump motor
Electricity.
Optionally, this method further includes：
When preset failure signal occurs in the electro-motive vehicle, the air pump motor controller and the power electric are disconnected
The electrical connection in pond, wherein the high-voltage electricity needs of electro-motive vehicle described in the preset failure signal designation are disconnected.
Through the above technical solutions, after the receiving module receives turn signal, the control module can be low
Air accumulator is controlled in the environment of voltage and provides power for the air motor, is helped to provide steering for the electro-motive vehicle
Therefore power when the abnormal conditions of vehicle broken height piezoelectricity occurs needing in electro-motive vehicle, can disconnect high-voltage electricity, and same immediately
When can also keep steering power-assisted state, do not have when so as to avoid electro-motive vehicle from abnormal conditions occur to a certain extent
There is the injury to electro-motive vehicle and driver and passenger such as electric shock for disconnecting that high-voltage electricity may occur immediately.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the schematic block diagram according to a kind of electro-motive vehicle steering boost system of embodiment of the disclosure.
Fig. 2 is the schematic block diagram according to the electro-motive vehicle steering boost system of the another embodiment of the disclosure.
Fig. 3 is the schematic block diagram according to the electro-motive vehicle steering boost system of the another embodiment of the disclosure.
Fig. 4 is the schematic block diagram according to the electro-motive vehicle steering boost system of the another embodiment of the disclosure.
Fig. 5 is the flow chart according to a kind of electro-motive vehicle power steering method of embodiment of the disclosure.
Fig. 6 is the flow chart according to the electro-motive vehicle power steering method of the another embodiment of the disclosure.
Fig. 7 is the stream according to the inflation method for electro-motive vehicle steering boost system of the another embodiment of the disclosure
Cheng Tu.
Fig. 8 is the stream according to the inflation method for electro-motive vehicle steering boost system of the another embodiment of the disclosure
Cheng Tu.
Reference sign
10 receiving module, 20 control module
30 air motor, 40 air accumulator
50 inflation system, 501 air pump motor controller
502 air pump motor, 503 air pump
504 air pressure detection module, 60 power battery
Other loads of 70 high pressure junction boxs 80
100 electro-motive vehicle steering boost systems
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Fig. 1 is the schematic block diagram according to a kind of electro-motive vehicle steering boost system 100 of embodiment of the disclosure.Such as figure
Shown in 1, the system 100 includes receiving module 10, control module 20, air motor 30 and air accumulator 40, wherein：
The air accumulator 40 provides the gas of power for being stored as the air motor 30；
The receiving module 10, for receiving turn signal；
The control module 20, for when the receiving module 10 receives the turn signal, controlling the gas storage
Tank 40 provides power to the air motor 30；
The air motor 30, power for being provided using the air accumulator 40 provide power steering.
In addition, the air accumulator 40 can be the existing air accumulator 40 for providing power for braking system in the prior art,
It can also be the air accumulator 40 of individualism.When using the air accumulator 40 of power is provided for braking system in the prior art come for institute
When stating the offer power of air motor 30, the volume requirement of the air accumulator 40 is relatively large.
The turn signal that the receiving module 10 receives can be the steering sent out by the entire car controller of electro-motive vehicle
Signal can also be the turn signal sent out by other controllers.
The air motor 30 can be following method for the method that electro-motive vehicle provides power steering：It is described pneumatic
Motor 30 provides power for the steering pump of electro-motive vehicle, and the steering pump moves turning machine in the driving lower band of this power to be come
Carry out the steering of electro-motive vehicle.
In a kind of possible embodiment, the control module 20 is opened by controlling the air bleeding valve of the air accumulator 40
It spends to adjust the power that the air accumulator 40 is provided to the air motor 30.
When wherein, in the state that electro-motive vehicle is in normal work, control module 20 is in the environment of low-voltage
The aperture of the air bleeding valve of the air accumulator 40 is controlled to adjust to control the power for being supplied to air motor 30；It is met in electro-motive vehicle
After disconnecting high-voltage electricity immediately to abnormal conditions, electro-motive vehicle steering boost system 100 is unaffected, and control module 20 is still
The aperture that the air bleeding valve of the air accumulator 40 can be controlled to adjust in the environment of low-voltage is supplied to air motor 30 to control
Power, to for electro-motive vehicle provide power steering.Therefore, this operation encounter electro-motive vehicle abnormal conditions need it is vertical
It is unaffected when disconnecting high-voltage electricity.
In addition, can also be connected by tracheae between the air accumulator 40 and the air motor 30.
Through the above technical solutions, the air accumulator 40 be stored as the air motor 30 provide power gas, first by
The receiving module 10 receives turn signal, and then the control module 20 receives the steering letter in the receiving module 10
Number when, the air accumulator 40 is controlled in the environment of low-voltage and provides power, the last pneumatic horse to the air motor 30
Power steering is provided using the power of the offer of the air accumulator 40 up to 30, since electro-motive vehicle steering boost system 100 can
To provide power steering under low voltage environment for electro-motive vehicle, therefore, when electro-motive vehicle occurs needing vehicle broken height pressure
When the abnormal conditions of electricity, high-voltage electricity can be disconnected immediately, and can also keep steering power-assisted simultaneously, so as in certain journey
There is no electric shock for disconnecting that high-voltage electricity may occur immediately etc. to electric drive vehicle when avoiding electro-motive vehicle from abnormal conditions occur on degree
And driver and passenger injury.Certainly, can be the power that air motor 30 provides due to the finite volume of air accumulator 40
It is also limited, therefore after occurring needing the abnormal conditions of vehicle broken height pressure and immediately disconnection vehicle high-voltage electricity, air accumulator
40 are only the power that air motor 30 provides limited a period of time, but due to needing the time of power steering at this time usually not
Can it is long, if providing steering power using individual air accumulator 40, commonly use volume air accumulator 40 can meet demand, if making
It is turned to simultaneously for electro-motive vehicle with the air accumulator in the braking system of the electro-motive vehicle and electro-motive vehicle braking carries
For power-assisted, then the volume needs of the air accumulator 40 are relatively large.
Fig. 2 is the schematic block diagram according to the electro-motive vehicle steering boost system 100 of the another embodiment of the disclosure.Such as figure
Shown in 2, which includes receiving module 10, control module 20, air motor 30 and air accumulator 40, further includes inflation system
System 50.
The inflation system 50, for being inflated for the air accumulator 40.
Wherein, the inflation system 50 can be the existing inflation system inflated for the air accumulator 40 in existing braking system
System, can also be the inflation system of individualism, the air accumulator being only individually in the electro-motive vehicle steering boost system 100
40 inflations.
Through the above technical solutions, the inflation system 50 by for the air accumulator 40 inflate, can be in electric drive vehicle
The moment ensures that the air pressure in the air accumulator 40 can be that the air motor 30 provide required power in driving process.
Fig. 3 is the schematic block diagram according to the electro-motive vehicle steering boost system 100 of the another embodiment of the disclosure.Such as figure
Shown in 3, which includes receiving module 10, control module 20, air motor 30, air accumulator 40 and inflation system 50,
In, the inflation system 50 includes air pump motor controller 501, air pump motor 502 and air pump 503.
The air pump motor controller 501, for the direct current of the power battery 60 of the electro-motive vehicle to be converted into
The alternating current powered to the air pump motor 502；
The air pump motor 502, for providing power for the air pump 503；
The air pump 503, for being inflated to the air accumulator 40.
Wherein, the air pump motor controller 501, air pump motor 502 and air pump 503 can be existing braking system respectively
In for air accumulator 40 inflate air pump motor controller, air pump motor and air pump, can also be the device being separately provided, only individually
It is inflated for the air accumulator 40 in electro-motive vehicle steering boost system 100.
Power battery 60 needs before powering for the air pump motor controller 501 by the high pressure junction box in figure
70 carry out the distribution of electric power, and a part of electric power gives air pump motor controller 501, remaining electric power also needs to distribute to electric drive
Other loads 80 in vehicle.
Under normal conditions, since the air pump motor controller 501 is by the power battery 60 of the electro-motive vehicle
Direct current is converted into the alternating current powered to the air pump motor 502, therefore above-mentioned includes air pump motor controller 501, gas
The inflation system 50 of pump motor 502 and air pump 503 is to need to inflate the air accumulator 40 in the environment of high voltage, therefore,
Electro-motive vehicle encounter abnormal conditions need disconnect high-voltage electricity when, the inflation system 50 also no longer works.
Through the above technical solutions, first by the air pump motor controller 501 by the power battery of the electro-motive vehicle
60 direct current is converted into the alternating current powered to the air pump motor 502, is then the air pump by the air pump motor 502
503 provide power, are finally inflated from the air pump 503 to the air accumulator 40, in this way, can run well in electro-motive vehicle
During, ensure that the air pressure in the air accumulator 40 can provide enough power to be turned for the air motor 30
To.In addition, after occurring needing the abnormal conditions of vehicle broken height piezoelectricity and disconnection vehicle high-voltage electricity immediately, inflation system 50 does not have
There is high-voltage electricity and the inflation of air accumulator 40 can not be continued as, is pneumatic in this case due to the finite volume of air accumulator 40
The power that motor 30 provides is also limited, therefore air accumulator 40 is only the offer of air motor 30 after vehicle broken height piezoelectricity
The power of limited a period of time.
Fig. 4 is the schematic block diagram according to the electro-motive vehicle steering boost system 100 of the another embodiment of the disclosure.Such as figure
Shown in 4, which includes receiving module 10, control module 20, air motor 30, air accumulator 40 and inflation system 50, wherein
The inflation system 50 includes air pump motor controller 501, air pump motor 502 and air pump 503, further includes air pressure detection module
504。
The air pressure detection module 504, for detecting the air pressure in the air accumulator 40；
The air pump motor controller 501 is additionally operable to stop when the air pressure detected reaches preset upper limit value to the gas
Pump motor 502 is powered.
The air pressure detection module 504 can be the conventional air pressures detection device such as pressure sensor.Electro-motive vehicle just
Often in the case of work, air pressure detection module 504 detects the air pressure in the air accumulator 40, the air pump motor controller 501
Stop powering to the air pump motor 502 when the air pressure detected reaches preset upper limit value；Exception is encountered in electro-motive vehicle
When situation needs broken height piezoelectricity, air pump motor controller 501, air pump motor 502 and air pump 503 are supplied without power supply and are stopped
Work, if but the air pressure detection module 504 when being the pressure sensor that need not be worked in the environment of high voltage, the gas
Pressing detection module 504, by electro-motive vehicle, broken height piezoelectricity is not influenced in abnormal cases, can still detect the air accumulator
Air pressure in 40.
Through the above technical solutions, the air pressure detection module 504 first detects the air pressure in the air accumulator 40, then institute
Air pump motor controller 501 is stated to stop powering to the air pump motor 502 when the air pressure detected reaches preset upper limit value, this
Sample can be intermittently that air accumulator 40 is inflated, and avoid the occurrence of inflation system 50 and inflate excessive hidden danger to air accumulator 40, protecting
It will not be overcharged in the case of air pressure abundance in card air accumulator 40.In addition, since the air pressure detection module 504 can be in low electricity
Pressure ring works in border, thus electro-motive vehicle occur abnormal conditions and immediately disconnect high-voltage electricity after, air pressure detection module 504 according to
The old air pressure that can be detected in the air accumulator 40, and alarmed in air pressure deficiency to remind driver's power steering not
Foot, can allow driver to be better understood upon the state of current electro-motive vehicle, avoid some unnecessary injuries.
In a kind of possible embodiment, the air pump motor controller 501 is additionally operable to go out in the electro-motive vehicle
It disconnects when existing preset failure signal and to be electrically connected with the power battery 60, electric drive vehicle described in the preset failure signal designation
High-voltage electricity needs be disconnected.
Wherein, the preset failure signal can be the signal of electro-motive vehicle important spare part damage, can also be electricity
The signal of vehicle important spare part failure is driven, as long as being enough to indicate what the high-voltage electricity needs of the electro-motive vehicle were disconnected
Fault-signal.
Through the above technical solutions, when the preset failure signal for needing to disconnect high-voltage electricity occurs in electro-motive vehicle, it is described
Air pump motor controller 501 is disconnected with being electrically connected for the power battery 60, can further ensure electro-motive vehicle in this way
There is a degree of injury that high-voltage electricity may generate electro-motive vehicle and driver and passenger when abnormal conditions.
According to another aspect of the present disclosure, a kind of electro-motive vehicle is also provided, which includes above-described
Electro-motive vehicle steering boost system 100.The electro-motive vehicle can be pure electric vehicle, can also be hybrid vehicle
Etc. the electro-motive vehicle for needing power battery 60 to power.
Fig. 5 is the flow chart according to a kind of electro-motive vehicle power steering method of embodiment of the disclosure.Such as Fig. 5 institutes
Show, the method is applied to electro-motive vehicle steering boost system, and the electro-motive vehicle steering boost system includes shown in Fig. 1
Receiving module 10, control module 20, air motor 30 and air accumulator 40；The method includes the steps S501 to step
S503。
In step S501, turn signal is received by the receiving module 10；
In step S502, when the receiving module 10 receives the turn signal, controlled by the control module 20
It makes the air accumulator 40 and provides power to the air motor 30；
In step S503, helped using the power that the air accumulator 40 provides to provide steering by the air motor 30
Power.
Through the above technical solutions, turn signal is received by the receiving module 10 first, then by the control module
20 when the receiving module 10 receives the turn signal, and the air accumulator 40 is controlled in the environment of low-voltage to described
Air motor 30 provides power, is finally helped using the power that the air accumulator 40 provides to provide steering by the air motor 30
Power, since according to disclosed method power steering can be provided for electro-motive vehicle under low voltage environment, when electricity drives
When the abnormal conditions of vehicle broken height piezoelectricity occurs needing in motor-car, high-voltage electricity can be disconnected immediately, and can also keep electric drive simultaneously
The power steering state of motor-car, without immediately when so as to avoid electro-motive vehicle from abnormal conditions occur to a certain extent
Disconnect the injury to electro-motive vehicle and driver and passenger such as electric shock that high-voltage electricity may occur.Certainly, due to air accumulator 40
It is also limited that finite volume, which can be the power that air motor 30 provides, therefore is occurring needing vehicle broken height piezoelectricity
After abnormal conditions and immediately disconnection vehicle high-voltage electricity, air accumulator 40 is only air motor 30 and provides limited a period of time
Steering power, but need the time of power steering usually will not be long at this time, if providing steering using individual air accumulator 40
Power, commonly use volume air accumulator 40 can meet demand, if using the air accumulator in the braking system of the electro-motive vehicle
Power-assisted is provided with electro-motive vehicle braking to be turned to simultaneously for electro-motive vehicle, then the volume of the air accumulator 40 needs relatively
Greatly.
Fig. 6 is the flow chart according to the electro-motive vehicle power steering method of the another embodiment of the disclosure.Such as Fig. 6 institutes
Show, the method includes the steps S501 and step S503, further include step S601.
In step s 601, when the receiving module 10 receives the turn signal, led to by the control module 20
The aperture for the air bleeding valve for controlling the air accumulator 40 is crossed to adjust the power that the air accumulator 40 is provided to the air motor 30.
Through the above technical solutions, since control module 20 can be with to the adjusting of the aperture of the air bleeding valve of air accumulator 40 operation
It is carried out under low voltage environment, therefore, this is operated when encountering electro-motive vehicle abnormal conditions and needing to disconnect high-voltage electricity immediately not
It can be affected, and provide a kind of method that specific control air accumulator 40 provides power for air motor 30.
Fig. 7 is the flow according to the inflation method of the electro-motive vehicle steering boost system of the another embodiment of the disclosure
Figure.Wherein, electro-motive vehicle steering boost system can also include inflation system 50 shown in Fig. 3, wherein inflation system 50 wraps
Include air pump motor controller 501, air pump motor 502 and air pump 503.As shown in fig. 7, the inflation method include step S701 extremely
Step S703.
In step s 701, the direct current of the power battery of the electro-motive vehicle is turned by the air pump motor controller
Change the alternating current powered to the air pump motor into；
In step S702, power is provided for the air pump by the air pump motor；
In step S703, inflated from the air pump to the air accumulator.
Through the above technical solutions, first by the air pump motor controller 501 by the power battery of the electro-motive vehicle
60 direct current is converted into the alternating current powered to the air pump motor 502, is then the air pump by the air pump motor 502
503 provide power, are finally inflated from the air pump 503 to the air accumulator 40, in this way, can run well in electro-motive vehicle
During, ensure that the air pressure in the air accumulator 40 can provide enough power to be turned for the air motor 30
To.In addition, after occurring needing the abnormal conditions of vehicle broken height piezoelectricity and disconnection vehicle high-voltage electricity immediately, inflation system 50 does not have
There is high-voltage electricity and the inflation of air accumulator 40 can not be continued as, due to the finite volume of air accumulator 40, it is in this case
The steering power that air motor 30 provides is also limited, therefore air accumulator 40 is only pneumatic horse after vehicle broken height piezoelectricity
The steering power for providing limited a period of time up to 30.
Fig. 8 is the flow according to the inflation method of the electro-motive vehicle steering boost system of the another embodiment of the disclosure
Figure.It wherein, can be with as shown in figure 4, inflation system 50 includes air pump motor controller 501, air pump motor 502 and air pump 503
Including air pressure detection module 504.As shown in figure 8, the inflation method includes step S701 to step S703, further include step
S801 to step S803.
In step S801, the air pressure in the air accumulator 40 is detected；
In step S802, judge whether the air pressure detected reaches preset upper limit value, if so, going to step S803；
If it is not, then going to step S701.
In step S803, the air pump motor controller 501 stops powering to the air pump motor 502.
Through the above technical solutions, first detect the air pressure in the air accumulator 40, the then air pump motor controller 501
Stop powering to the air pump motor 502 when the air pressure detected reaches preset upper limit value, inflation can be avoided the occurrence of in this way
System 50 inflates excessive hidden danger to air accumulator 40, will not be overcharged in the case of the air pressure abundance in ensureing air accumulator 40.Separately
Outside, since the air pressure detection module 504 can work in low voltage environment, there are abnormal conditions in electro-motive vehicle
And immediately disconnect high-voltage electricity after, air pressure detection module 504, which remains unchanged, can detect air pressure in the air accumulator 40, and air pressure not
It is alarmed when sufficient to remind driver's steering force insufficient, driver can be allowed to be better understood upon the shape of current electro-motive vehicle
State avoids some unnecessary injuries.
In a kind of possible embodiment, further include according to disclosed method：When the electro-motive vehicle occurs in advance
If when fault-signal, disconnecting being electrically connected for the air pump motor controller 501 and the power battery 60, wherein described default
Fault-signal indicates that the high-voltage electricity needs of the electro-motive vehicle are disconnected.
Through the above technical solutions, when the preset failure signal for needing to disconnect high-voltage electricity occurs in electro-motive vehicle, disconnect
Air pump motor controller 501 is electrically connected with power battery 60, can further ensure that abnormal feelings occurs in electro-motive vehicle in this way
A degree of injury that high-voltage electricity may generate electro-motive vehicle and driver and passenger when condition.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (12)
1. a kind of electro-motive vehicle steering boost system, which is characterized in that the system comprises receiving module, control module, gas
Dynamic motor and air accumulator, wherein：
The air accumulator provides the gas of power for being stored as the air motor；
The receiving module, for receiving turn signal；
The control module, for when the receiving module receives the turn signal, controlling the air accumulator to described
Air motor provides power；
The air motor, power for being provided using the air accumulator provide power steering.
2. system according to claim 1, which is characterized in that the exhaust that the control module passes through the control air accumulator
The aperture of valve adjusts the power that the air accumulator is provided to the air motor.
3. system according to claim 1, which is characterized in that the electro-motive vehicle steering boost system further includes inflation
System, for being inflated for the air accumulator.
4. system according to claim 3, which is characterized in that the inflation system includes air pump motor controller, air pump
Motor and air pump, wherein：
The air pump motor controller, for being converted into the direct current of the power battery of the electro-motive vehicle to the air pump
The alternating current of motor power supply；
The air pump motor, for providing power for the air pump；
The air pump, for being inflated to the air accumulator.
5. system according to claim 4, which is characterized in that the inflation system further includes air pressure detection module, is used for
Detect the air pressure in the air accumulator；
The air pump motor controller is additionally operable to stop when the air pressure detected reaches preset upper limit value to the air pump motor
Power supply.
6. system according to claim 4, which is characterized in that the air pump motor controller is additionally operable in the electric drive
It disconnects when preset failure signal occurs in vehicle and being electrically connected with the power battery, electricity drive described in the preset failure signal designation
The high-voltage electricity needs of motor-car are disconnected.
7. a kind of electro-motive vehicle, which is characterized in that the electro-motive vehicle includes being wanted according to any right in claim 1 to 6
Seek the electro-motive vehicle steering boost system.
8. a kind of electro-motive vehicle power steering method, which is characterized in that it is applied to electro-motive vehicle steering boost system, it is described
Electro-motive vehicle steering boost system includes receiving module, control module, air motor and air accumulator；The method includes：
Turn signal is received by the receiving module；
When the receiving module receives the turn signal, the air accumulator is controlled to described pneumatic from the control module
Motor provides power；
The power that is there is provided using the air accumulator by the air motor provides power steering.
9. according to the method described in claim 8, it is characterized in that, the method further includes：
By the control module air accumulator is adjusted by controlling the aperture of the air bleeding valve of the air accumulator to described pneumatic
The power that motor provides.
10. according to the method described in claim 9, it is characterized in that, the electro-motive vehicle steering boost system further includes filling
Gas system, the inflation system include air pump motor controller, air pump motor and air pump, and this method further includes：
By the air pump motor controller by the direct current of the power battery of the electro-motive vehicle be converted into electricity to the air pump
The alternating current of machine power supply；
By the air pump motor power is provided for the air pump；
It is inflated from the air pump to the air accumulator.
11. according to the method described in claim 10, it is characterized in that, this method further includes：
Detect the air pressure in the air accumulator；
When the air pressure detected reaches preset upper limit value, the air pump motor controller stops powering to the air pump motor.
12. according to the method described in claim 10, it is characterized in that, this method further includes：
When preset failure signal occurs in the electro-motive vehicle, the air pump motor controller and the power battery are disconnected
Electrical connection, wherein the high-voltage electricity needs of electro-motive vehicle described in the preset failure signal designation are disconnected.
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| CN201710208885.8A CN108657272A (en) | 2017-03-31 | 2017-03-31 | Electro-motive vehicle steering boost system and method and electro-motive vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710208885.8A CN108657272A (en) | 2017-03-31 | 2017-03-31 | Electro-motive vehicle steering boost system and method and electro-motive vehicle |
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Application publication date: 20181016 |