CN106394663B - The combined system of vehicle braking and steering - Google Patents
The combined system of vehicle braking and steering Download PDFInfo
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- CN106394663B CN106394663B CN201510466196.8A CN201510466196A CN106394663B CN 106394663 B CN106394663 B CN 106394663B CN 201510466196 A CN201510466196 A CN 201510466196A CN 106394663 B CN106394663 B CN 106394663B
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Abstract
The present invention provides the combined system of a kind of vehicle braking and steering, including air compressor machine (10), motor (20), steering pump (30), controller (40) and reduction gearbox (100), the motor shaft of motor (20) is connected to the input shaft of reduction gearbox, first output shaft of reduction gearbox is connected to steering pump, second output shaft is connected to air compressor machine by electromagnetic clutch (50), and controller is for controlling electromagnetic clutch engagement or separation.Through the above technical solutions, there are two output shafts for reduction gearbox tool, therefore power of motor density improves, and can reduce motor volume, and reduce cost.Simultaneously, two output shafts of reduction gearbox can design different reduction ratio according to the demand of air compressor machine and steering pump respectively, i.e. the revolving speed of motor, steering pump and air compressor machine can be with flexible design, then matching is completed by the reduction ratio of two output shafts, and entire combined system is compact-sized, noise is small, and transmission efficiency and reliability are higher.
Description
Technical field
The present invention relates to vehicular fields, and in particular, to a kind of combined system of vehicle braking and steering.
Background technique
In the existing vehicles, especially in electric vehicle, two motors is mostly used to respectively drive air compressor machine and steering greatly
Oil pump, used for air compressor in providing air pressure for vehicle braking system, steering pump provides power-assisted for full-vehicle steering system.By this
Mode can more occupy the arrangement space on chassis, and also will increase vehicle self weight and manufacturing cost.
Summary of the invention
The object of the present invention is to provide the combined systems of a kind of vehicle braking and steering, are able to solve in the prior art
Relevant issues.
To achieve the goals above, the present invention provides the combined system of a kind of vehicle braking and steering, including pneumatics is mechanical, electrical
Machine, steering pump, controller and the first reduction gearbox, wherein the motor shaft of the motor is connected to the input shaft of the reduction gearbox,
First output shaft of the reduction gearbox is connected to the steering pump, and the second output shaft is connected to the sky by electromagnetic clutch
Press, the controller is for controlling the electromagnetic clutch engagement or separation.
Through the above technical solutions, motor is connected to steering pump by the first output shaft of reduction gearbox, and pass through second
Output shaft and electromagnetic clutch are connected to air compressor machine, so entire combined system is compact-sized, noise is small, and transmission efficiency and
Reliability is higher.In addition, since reduction gearbox tool is there are two output shaft, can using design speed higher, the smaller motor of volume,
The power density of motor can be improved, reduces motor volume, and cost can be reduced.Meanwhile two output shafts can be distinguished
Different reduction ratio is designed according to the demand of air compressor machine and steering pump, i.e. the revolving speed of motor, steering pump and air compressor machine can
With flexible design, matching is then completed by the reduction ratio of two output shafts.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic illustration of the oil circuit design of the combined system of first embodiment according to the present invention.
Fig. 2 is the schematic illustration of the oil circuit design of the combined system of second embodiment according to the present invention.
Fig. 3 is the schematic illustration of the oil circuit design of the combined system of third embodiment according to the present invention.
Fig. 4 is the schematic illustration of the oil circuit design of the combined system of the 4th embodiment according to the present invention.
Fig. 5 is the schematic illustration of the structure design of combined system according to an embodiment of the present invention.
Fig. 6 shows the schematic illustration of the structure design of the combined system of another embodiment according to the present invention.
Fig. 7 shows the schematic illustration of the structure design of the combined system of another embodiment according to the present invention.
Description of symbols
10 air compressor machines
12 check valve, 13 exhaust valve
20 motor, 22 electric machine casing
30 steering pumps 31 turn to in-line
32 oil pumps install 33 low pressure oil cover of shell
34 low pressure oil pocket, 35 high-voltage oil cavity
40 controller, 50 electromagnetic clutch
60 air accumulator, 61 pressure sensor
70 diverters 71 turn to oil return line
72 rotary angle transmitter, 80 fuel tank
81 oil suction road, 82 filter
90 radiator, 91 oil temperature sensor
100 reduction gearbox, 102 reduction box casing
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Combined system
As shown in Figure 1, a kind of embodiment according to the present invention, discloses the combination system of a kind of vehicle braking and steering
System, including air compressor machine 10, motor 20, steering pump 30, reduction gearbox 100 and controller 40, wherein the motor shaft of the motor 20
It is connected to the input shaft of reduction gearbox 100, the first output shaft of reduction gearbox 100 is connected to steering pump 30, and the second output shaft passes through
Electromagnetic clutch 50 is connected to air compressor machine 10, and the controller 40 is for controlling the engagement of electromagnetic clutch 50 or separation.
Specifically, motor shaft is connected to steering pump 30 by the first output shaft of reduction gearbox 100, for driving the steering
Oil pump 30 works, to provide power-assisted for the steering operation of vehicle to the steering system fuel feeding of vehicle；The second of reduction gearbox 200 is defeated
Shaft is connected to air compressor machine 10 by electromagnetic clutch 50, controls the electromagnetic clutch 50 engagement by controller 40 or divides
From, drive to the property of can choose air compressor machine 10 work, and as needed to the braking system of vehicle provide air pressure.More specifically,
Steering pump 30 is used to provide hydraulic oil to diverter 70, and air compressor machine 10 is used to provide air pressure to air accumulator 60.In addition, motor 20
It can generally also be controlled by controller 40.Certainly, the operation of motor 20 can also pass through other control modes or start-stop
Switch is to control.
By this embodiment, air compressor machine 10, electromagnetic clutch 50, motor 20, steering pump 30 and reduction gearbox 100 can
With close arrangement, thus entire combined system is compact-sized, and noise is small, and transmission efficiency and reliability are higher.In addition, due to
Motor 20 drives steering pump 30 and air compressor machine 10 by two output shafts of reduction gearbox 100, therefore can use design speed
Higher, the smaller motor of volume, it can improve the power density of motor, reduce motor volume, and cost can be reduced.Together
When, two output shafts of reduction gearbox can design different decelerations according to the demand of air compressor machine 10 and steering pump 30 respectively
Than that is, then the revolving speed of motor, steering pump and air compressor machine can pass through the reduction ratio completion of two output shafts with flexible design
Match.
In addition, the reduction box casing 102 of the electric machine casing 22 of motor 20, reduction gearbox 100 and the oil pump of steering pump 30
Installation shell 32 can pass sequentially through fastener and be removably joined together to constitute a monolithic case, can guarantee in this way
The structure of the two is more compact, saves the arrangement space on chassis, and easy to assembly.
Controller 40 can be the dedicated controller of combined system of the invention, can also use entire car controller.
The control program of combined system
As shown in Figure 1, combined system of the invention includes air accumulator 60, pressure sensor is provided on the air accumulator 60
61, air compressor machine 10 to air accumulator 60, is provided with check valve 12 in gas circuit, controller 40 is according to pressure sensor by air circuit connection
The atmospheric pressure value of 61 detections is engaged or is separated to control electromagnetic clutch 50.
In this scheme, pressure sensor 61 can be used to the atmospheric pressure value in real-time detection air accumulator 60, and by the air pressure
The signal of value is sent to controller 40, and controller 40 can be according to the atmospheric pressure value to determine whether needing to engage electromagnetic clutch 50
Air compressor machine 10 is set to work.
In general, air accumulator 60 has the first setting atmospheric pressure value and the second setting atmospheric pressure value, the first setting atmospheric pressure value is greater than institute
State the second setting atmospheric pressure value.
When the atmospheric pressure value that pressure sensor 61 acquires is less than the second setting atmospheric pressure value, controller 40 controls electromagnetic clutch
50 are switched to engagement state from discrete state, and motor 20 drives air compressor machine 10 to work, by the check valve 12 in gas circuit to gas storage
Air pressure is provided in tank 60, to guarantee that the braking system of vehicle can work normally.
When pressure sensor 61 acquire atmospheric pressure value reach it is described first setting atmospheric pressure value when, controller 40 control electromagnetism from
Clutch 50 is switched to discrete state from engagement state, and air compressor machine 10 does not rerun, and stops continuing to provide air pressure to air accumulator 60.
In the present invention, also other in the gas circuit between air compressor machine 10 and check valve 12 to be connected to exhaust valve 13, controller 40
It opens or is closed for controlling exhaust valve 13.By the exhaust valve 13, can unexpected engagement to electromagnetic clutch 50 or
Separation buffered, not only can reduce the abrasion of electromagnetic clutch 50, additionally it is possible to buffering due to air compressor machine 10 suddenly work or
Person stops and impacts caused by the steering operation of diverter 70.
Specifically, as a preferred embodiment, when the atmospheric pressure value that pressure sensor 61 acquires is set less than second
When atmospheric pressure value, controller 40 controls the electromagnetic clutch 50 first and is switched to engagement state from discrete state, then controls again
Exhaust valve 13 is switched to closed state from opening state.Before the engagement of electromagnetic clutch 50, exhaust valve 13 is in the open state,
Therefore unloaded engagement may be implemented in electromagnetic clutch 50, so as to reduce the abrasion to electromagnetic clutch 50.Meanwhile in electromagnetism
After clutch 50 engages, although air compressor machine 10 starts running, the gas that air compressor machine 10 generates will be by other in gas circuit
The exhaust valve 13 connect is discharged, thus substantially and non-loaded, so will not cause significantly to the steering operation of diverter 70
Impact.
It is further preferred that the controller 40 controls the exhaust valve 13 from beating after the engagement of electromagnetic clutch 50
Open state is slowly gradually switched to closed state, that is, realizes the Slow loading of air compressor machine 10, rather than load suddenly, so as to
Preferably to buffer the impact caused by the steering operation of diverter 70, it is reduced as far as to during Driver Steering Attention
The adverse effect of feel.
The time that exhaust valve 13 is slowly switched from opening state to closed state can be debugged as the case may be, example
Such as, when air compressor machine power is larger, the time can be appropriate longer, conversely, the time can be appropriate short by one when air compressor machine power is smaller
A bit.As long as the handoff procedure of exhaust valve 13 is appropriate slowly, air compressor machine 10 can be loaded gradually, the fortune of steering pump 30
Turning situation will not change suddenly, turn to in-line 31 in oil pressure also will not suddenly change, thus will not be to diverter 70
Steering operation cause obviously impact and influence steering operation feel.
The control process loaded above to air compressor machine 10 is described.It similarly, can also be with when air compressor machine 10 unloads
Reduce the impact of the steering operation to diverter 70 by the reasonable control to exhaust valve 13 and clutch.
Specifically, when the atmospheric pressure value that pressure sensor 61 acquires reaches the first setting atmospheric pressure value, controller 40 is controlled first
Exhaust valve 13 processed is switched to opening state from closed state, then controls electromagnetic clutch 50 again from engagement state and is switched to separation
State.
Since before the separation of electromagnetic clutch 50, exhaust valve 13 is had already turned on, so the load of air compressor machine 10 will pass through
Exhaust valve 13 and be released, so as to buffer the impact of the steering operation to diverter 70.Later, electromagnetic clutch 50 exists
It is separated in the case where 10 zero load of air compressor machine.
It is also preferable that controller 40 is also the preferred exhaust valve 13 that controls from closure before the separation of electromagnetic clutch 50
State is slowly gradually switched to opening state, that is, realizes the slow unloading of air compressor machine 10, rather than Condition of Sudden Unloading, so as to
The impact to the steering operation of diverter 70 is preferably buffered, is reduced as far as to feel during Driver Steering Attention
Adverse effect.
Because exhaust valve 13 is gradually switched to opening state from closed state, so that air compressor machine 10 can be unloaded gradually, turn
Will not change suddenly to the working order of oil pump 30, turn to in-line 31 in oil pressure also will not suddenly change, thus not
The steering operation of diverter 70 can be caused obviously to impact and influence steering operation feel.
In the present invention, the forms such as reversal valve, proportioning valve, switch valve, damping hole can be used in exhaust valve 13, as long as can be real
Existing above-mentioned function, the invention is not limited in this regard.In addition, the exhaust outlet of exhaust valve 13 can generally be directly communicated to atmosphere.
Alternatively, the exhaust outlet of exhaust valve 13 can also lead to other air accumulator or other desired place.
As shown in Figure 1, the steering pump 30 is connected to diverter 70 by turning to in-line 31, it is turning for diverter 70
Power-assisted is provided to operation.Rotary angle transmitter 72 is provided on diverter 70, for detecting the angular signal of diverter 70, with judgement
Whether diverter 70 is in steering state.
As a preferred implementation manner, when the atmospheric pressure value that pressure sensor 61 acquires reaches the first setting atmospheric pressure value,
Whether air compressor machine 10 needs to stop to continue to provide air pressure to air accumulator 60, before this, first determine whether diverter 70 in steering
State.
Specifically, when detecting that diverter 70 is in non-steering state by rotary angle transmitter 72, controller 40 can be with
It controls exhaust valve 13 and from closed state is switched to opening state, then control electromagnetic clutch 50 again and be switched to point from engagement state
From state.This process can be identical as procedures described above, repeats no more.
When detecting that diverter 70 is in steering state by rotary angle transmitter 72, controller 40 can control exhaust valve
13 are switched to opening state from closed state, then wait diverter 70 be returned to non-steering state and then control electromagnetism from
Clutch 50 is switched to discrete state from engagement state.Pass through this control mode, when diverter 70 is in steering state, electromagnetism
Clutch 50 does not separate temporarily, and air compressor machine 10 is avoided to stop working and influence steering operation feel.
It is further to note that in this embodiment, the opening and closing mode of exhaust valve 13 can with above
The case where description, is identical, i.e., slowly gradually switches, to reduce the impact to in-line 31 is turned to as much as possible.
In another preferred embodiment of the invention, air accumulator 60 has the highest atmospheric pressure value of setting, secondary high gas
Pressure value and barometric minimum value, secondary hyperbar value are less than highest atmospheric pressure value and are greater than barometric minimum value.According to different situations, above
In first setting atmospheric pressure value can choose highest atmospheric pressure value or secondary hyperbar value.Preferably, secondary hyperbar value can choose
For the 75%-85% of highest atmospheric pressure value.
Specifically, when detecting that diverter 70 is in non-steering state by rotary angle transmitter 72, the first setting air pressure
Value is highest atmospheric pressure value, and second sets atmospheric pressure value as barometric minimum value；It is detected at diverter 70 when by rotary angle transmitter 72
When steering state, first sets atmospheric pressure value as time hyperbar value, and second sets atmospheric pressure value as barometric minimum value.
In other words, when diverter 70 is in non-steering state, sky is judged using highest atmospheric pressure value and barometric minimum value
Whether press 10 needs work.And when diverter 70 is in steering state, then using time hyperbar value and barometric minimum value come
Judge whether air compressor machine 10 needs work.
Air pressure in air accumulator 60 is higher, and air compressor machine 10 works, and required power is also higher, i.e., load is bigger；In addition,
Turning velocity is faster when diverter 70 works, corner is bigger, and the required oil pressure turned in in-line 31 is also higher, that is, turns to
Power needed for oil pump 30 is also higher.Through the above scheme, diverter 70 and air compressor machine 10 can be made to offset one from another peak work
Rate works, so as to select the relatively small motor 20 of design power, so as to reduce cost.In addition, turning to
When device 70 is in steering state, air compressor machine 10 is the secondary hyperbar value that the condition that air accumulator 60 provides air pressure is in air accumulator 60,
Rather than highest atmospheric pressure value, therefore air compressor machine 10 load variation also can be smaller, thus the start-stop of air compressor machine to turn into
The impact of oil pressure also can be smaller in oil circuit 31, can maximally reduce the unfavorable shadow even being eliminated to steering operation feel
It rings.
Above the control program of combined system is described in detail.In addition, for motor 20, equally
Can controller 40 through the invention controlled, that is, in a preferred embodiment, according to the atmospheric pressure value in air accumulator 60
With the working condition of diverter 70, controller 40 can not only be controlled exhaust valve 13 and electromagnetic clutch 50, can be with
Motor 20 is controlled accordingly, to realize the two-in-one of vehicle braking and steering by a controller and motor,
So that entire combined system is compact-sized and flexible design.
The oil circuit of combined system designs
Relevant to the oil circuit of combined system, combined system of the invention mainly includes motor 20, reduction gearbox 100, turns to
Oil pump 30, fuel tank 80, diverter 70 and controller 40.Furthermore it is also possible to selectively include filter 82, radiator 90 and oil
Temperature sensor 91.The oil circuit of combined system is summarized first below.
Oil liquid in the fuel tank 80 is supplied to diverter 70 by steering pump 30, provides steering for diverter 70 and helps
Power, and the oil liquid may also pass through controller 40, motor 20 and/or reduction gearbox 100, provide heat dissipation or lubrication for it.Herein
In embodiment, be the being also an option that property of oil liquid that diverter 70 provides power steering be used to be controller 40, motor 20 and/
Or reduction gearbox 100 provides heat dissipation or lubrication, without providing additional heat dissipation or lubricating arrangement for it again, so that entirely
Combined system is more compact in structure, and can reduce cost.
Fig. 1 shows the schematic illustration of the oil circuit of the combined system of first embodiment according to the present invention.
As shown in Figure 1, steering pump 30 is connected to fuel tank 80 by oil suction road 81, and is connected to by turning to in-line 31
Diverter 70, diverter 70 are successively connected to oil by controller 40, motor 20 and reduction gearbox 100 by turning to oil return line 71
Case 80, wherein filter 82 can also be set on the oil suction road 81 between fuel tank 80 and steering pump 30, in 70 He of diverter
Radiator 90 can also be set on steering oil return line 71 between controller 40.
Preferably, oil temperature sensor can also be set on the steering oil return line 81 between radiator 90 and controller 40
91, controller 40 can be operated according to the oil temperature signal that the oil temperature sensor 91 detects to control radiator 90, such as control heat dissipation
The start-stop etc. of the revolving speed or fan of fan in device 90.
Filter 82 can be used to filter the impurity in oil liquid, to protect steering pump 30 and diverter 70.Certainly, at this
In the technical solution of invention, filter 82 is simultaneously non-vital, if the purity of oil liquid is higher without filtering, then filter
82 also can be omitted.
The oil liquid temperature flowed out from diverter 70 is relatively high, and controller 40 is higher to the temperature requirement of cooling oil
(generally need to be less than 70 degree), therefore, radiator 90 be preferably provided at the upstream of the steering oil return line 71 of controller 40 to oil liquid
It is cooled down.Oil temperature sensor 91 can be set between radiator 90 and controller 40, to the oil cooling by radiator 90
The temperature of liquid is detected, and when the oil temperature of detection is higher, can be controlled radiator by controller 40 and be improved heat-sinking capability, such as
Improve the revolving speed of fan in radiator 90；Conversely, if radiator 90 can be controlled by controller 40 when the oil temperature of detection is lower
Its heat-sinking capability is reduced, or even is stopped working.In the other embodiments being described below, oil temperature sensing equally can be set
Device 91, the present invention repeats no more this.
The oil liquid flowed out from controller 40 enters in motor 20, provides heat dissipation for motor 20, it is of course also possible to be simultaneously electricity
Machine 20 provides lubrication.Oil liquid temperature after controller 40 can be risen, but since the heat-resisting ability of motor 20 is stronger, institute
To be sufficient for the cooling requirements of motor 20.Then, it can be flowed into reduction gearbox 100 from the oil liquid flowed out in motor 20, be
Gear in reduction gearbox 100 provides lubrication.Finally, may return in fuel tank 80 from the oil liquid flowed out in reduction gearbox 100.
In this embodiment, the oil liquid from fuel tank 80 is not only used to provide power-assisted for diverter 70, but also can be with
For providing heat dissipation for controller 40 and motor 20, while lubrication, therefore entire combined system can also be provided for reduction gearbox 100
Structure is simple, compact, and design concept is ingenious, and cost can be significantly reduced.
Fig. 2 shows the schematic illustration of the oil circuit of the combined system of second embodiment according to the present invention.
As shown in Fig. 2, steering pump 30 can be connected to fuel tank 80 by oil suction road 81, and connected by turning to in-line 31
It is connected to diverter 70, the diverter 70 is connected to fuel tank 80 by controller 40 by turning to oil return line 71, wherein in oil
It is provided with filter 82 on oil suction road 81 between case 80 and steering pump 30, the steering between diverter 70 and controller 40
Be provided with radiator 90 on oil return line 71, motor 20 and reduction gearbox 100 be located at steering pump 30 oil inlet and filter 82 it
Between oil suction road 81 on.
In this embodiment, the oil liquid from fuel tank 80 first passes around reduction gearbox 100 and enters motor 20, is motor 20
Heat dissipation is provided, therefore the heat dissipation effect of motor is more preferable.Then, oil liquid flows back into reduction gearbox 100 after recycling in motor 20, subtracts
The lubricant effect of fast case 100 can be to be fully ensured.Finally, oil liquid flows into steering pump 30 from reduction gearbox 100 again, by turning to
Oil pump 30 is supplied to diverter 70.
Fig. 3 shows the schematic illustration of the oil circuit of the combined system of third embodiment according to the present invention.
As shown in figure 3, the steering pump 30 is connected to the fuel tank 80 by oil suction road 81, and by turning to in-line
31 are connected to the diverter 70, and the diverter 70 successively passes through the controller 40 and motor 20 by turning to oil return line 71
And it is connected to fuel tank 80, wherein be provided with filter 82 on the oil suction road 81 between fuel tank 80 and steering pump 30, turning to
Radiator 90 is provided on steering oil return line 71 between device 70 and controller 40, the inside of the reduction gearbox 100 individually stores
There is oil liquid for lubricating.
In this embodiment, the oil liquid flowed out from motor 20 is returned directly to fuel tank 80, and is no longer pass through deceleration
Case 100.In addition, the inside of reduction gearbox 100 can individually store oil liquid for lubricating.Because storing list in reduction gearbox 100
For only oil liquid for lubricating, which is usually located at the bottom of reduction box casing, thus can reduce the gear in reduction gearbox and exist
What is generated when rotation stirs oily loss.
Fig. 4 shows the schematic illustration of the oil circuit of the combined system of the 4th embodiment according to the present invention.
As shown in figure 4, the fuel tank 80 can also be formed in the reduction gearbox 100, such as by the shell of reduction gearbox 100
Lower part store oil liquid, as fuel tank 80 use.
The steering pump 30 is connected to the fuel tank 80 by oil suction road 81, i.e., in reduction gearbox 100, and by turn into
Oil circuit 31 is connected to the diverter 70, and diverter 70 successively passes through the controller 40 and motor 20 by turning to oil return line 71
And it is connected to fuel tank 80, wherein be provided with filter 82 on the oil suction road 81 between fuel tank 80 and steering pump 30, the filtering
Device 82 can also be directly arranged in reduction gearbox 100.In addition, on steering oil return line 71 between diverter 70 and controller 40
Radiator 90 can be set.
In this embodiment, fuel tank 80 is formed directly into reduction gearbox 100, and filter 82 also can be arranged directly on
In reduction gearbox 100, therefore overall structure is more compact, is conducive to save chassis space, reduces cost.In addition, in reduction gearbox 100
Oil liquid can also provide lubrication simultaneously for gear therein.
The structure of combined system designs
It in the present invention, as a preferred implementation manner, can also be to motor 20, steering pump 30 and reduction gearbox 100
Structure optimize, this is described in detail below.
Fig. 5 shows the schematic illustration of the structure design of combined system according to an embodiment of the present invention.The reality
Applying oil circuit direction shown in the structure of mode is the oil circuit direction in Fig. 1 illustrated embodiment, also can be applied to it
Oil circuit direction in his embodiment, the present invention are not repeated this to describe.
As shown in figure 5, as an implementation, steering pump 30 includes oil pump installation shell 32 and pacifies positioned at the oil pump
The low pressure oil cover 33 in 32 outside of shell is filled, is formed as low pressure oil pocket 34, institute between the low pressure oil cover 33 and oil pump installation shell 32
The inside for stating oil pump installation shell 32 is formed as high-voltage oil cavity 35.
At work, low pressure oil pocket 34 can be connected to the oil inlet of steering pump 30, and inside will be contained or full of low
Pressure oil liquid, i.e., the oil liquid being connected to before steering pump pumping with fuel tank.In this way, oil liquid can be efficiently used,
Structure is simple, easy to accomplish.As a kind of selection, low pressure oil liquid can also be individually encapsulated in low pressure oil pocket 34.By this
Mode since low pressure oil liquid is individually encapsulated in low pressure oil pocket 34, and is not involved in and circulates, therefore filters soundproof effect more
It is good.
Similarly, at work, high-voltage oil cavity 35 can be connected to the oil outlet of steering pump 30, therefore inside will be contained
Or be full of high-voltage oil liquid, i.e., the oil liquid being connected to after steering pump pumping with diverter.As a kind of selection, high pressure oil
High-voltage oil liquid can also be individually encapsulated in chamber 35.
In this way, the high pressure oil that the noise generated when steering pump 30 works will successively pass through in high-voltage oil cavity 35
The multi-absorption barrier of liquid, oil pump installation shell 32, the low pressure oil liquid in low pressure oil pocket 34 and low pressure oil cover 33, to travel to
Extraneous noise will substantially reduce.Simultaneously as the oil liquid that steering pump 30 exports generally can all have pulsation, high-voltage oil cavity 35
In the presence of can effectively buffer and inhibit the pulsation of oil liquid, so that the oil pressure for being supplied to diverter 70 is more stable, be conducive to turn to
The steering operation of device 70.
In addition, motor 20 includes electric machine casing 22 as a preferred implementation manner, reduction gearbox 100 includes deceleration box shell
Body 102.Electric machine casing 22, reduction box casing 102 and oil pump installation shell 32 can be successively from left to right (square shown in Fig. 5
To) link together, such as be removably joined together by fastener.By this embodiment, total is more
It is compact, arrangement space can be saved.
Fig. 6 shows the schematic illustration of the structure design of the combined system of another embodiment according to the present invention.It should
In the structure of embodiment shown oil circuit direction be also using the oil circuit direction in Fig. 1 illustrated embodiment, but can also be with
Applied to the oil circuit direction in other embodiments, the present invention is not repeated this to describe.
As shown in fig. 6, reduction box casing 102 and oil pump installation shell 32 link together, low pressure oil cover 33 can be covered on
The outside of reduction box casing 102 and oil pump installation shell 32.In other words, low pressure oil cover 33 not only wraps up steering pump 30, but also
Reduction gearbox 100 is also wrapped up, therefore can not only reduce when steering pump 30 operates and be transmitted to external noise, but also can drop
Low reduction gearbox 100 is transmitted to external noise when operating, especially when 20 revolving speed of motor is higher, to the noise reduction of reduction gearbox 100
Effect is more obvious.
Fig. 7 shows the schematic illustration of the structure design of the combined system of another embodiment according to the present invention.It should
Shown oil circuit direction is the oil circuit direction in Fig. 4 illustrated embodiment in the structure of embodiment, also be can be applied to
Oil circuit direction in other embodiments, the present invention are not repeated this to describe.
As shown in fig. 7, the different place of the embodiment is, fuel tank 80 is formed in reduction gearbox 100, while can be with
Filter 82 is arranged in reduction gearbox 100.In addition, in this embodiment, low pressure oil pocket 34 can be connected to fuel tank 80, with
Utilize the oil liquid in fuel tank 80.In this way, oil liquid can be efficiently used, structure is simple, easy to accomplish.As a kind of choosing
It selects, i.e., scheme shown in fig. 7, low pressure oil liquid can also be individually encapsulated in low pressure oil pocket 34.In this way, due to low
Pressure oil liquid is individually encapsulated in low pressure oil pocket 34, and is not involved in and is circulated, therefore it is more preferable to filter soundproof effect.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, for example, being directed to combination system
The numerous embodiments of the oil circuit design of the numerous embodiments, combined system of the control program of system and the structure of combined system
The numerous embodiments of design can carry out any combination in the case where not generating contradictory situation, as long as it is without prejudice to the present invention
Thought, it should also be regarded as the disclosure of the present invention.
Claims (20)
1. the combined system of a kind of vehicle braking and steering, which is characterized in that including air compressor machine (10), motor (20), steering oil
Pump (30), controller (40) and reduction gearbox (100), the motor shaft of the motor (20) are connected to the defeated of the reduction gearbox (100)
Enter axis, the first output shaft of the reduction gearbox (100) is connected to the steering pump (30), and the second output shaft passes through electromagnetic clutch
Device (50) is connected to the air compressor machine (10), and the controller (40) is for controlling the electromagnetic clutch (50) engagement or dividing
From,
The combined system includes air accumulator (60), is provided with pressure sensor (61), the air compressor machine on the air accumulator (60)
(10) it by air circuit connection to the air accumulator (60), is provided with check valve (12) in the gas circuit, controller (40) root
The electromagnetic clutch (50) engagement or separation are controlled according to the atmospheric pressure value of the pressure sensor (61) detection,
It is also other in gas circuit between the air compressor machine (10) and check valve (12) to be connected to exhaust valve (13), the controller (40)
It opens or is closed for controlling the exhaust valve (13),
The air accumulator (60) has the first setting atmospheric pressure value and the second setting atmospheric pressure value, and the first setting atmospheric pressure value is greater than institute
State the second setting atmospheric pressure value, in which:
When the atmospheric pressure value of the pressure sensor (61) acquisition is less than the second setting atmospheric pressure value, controller (40) control
It makes the electromagnetic clutch (50) and is switched to engagement state from discrete state, then control the exhaust valve (13) again from open shape
State is switched to closed state；
When the atmospheric pressure value of the pressure sensor (61) acquisition reaches the first setting atmospheric pressure value, controller (40) control
It makes the exhaust valve (13) and is switched to opening state from closed state, then control the electromagnetic clutch (50) again from joint shape
State is switched to discrete state.
2. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that when the pressure sensor
(61) when the atmospheric pressure value acquired is less than the second setting atmospheric pressure value, the controller (40) controls the exhaust valve (13) from beating
Open state is slowly gradually switched to closed state.
3. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that when the pressure sensor
(61) when the atmospheric pressure value acquired reaches the first setting atmospheric pressure value, the controller (40) controls the exhaust valve (13) from closing
Conjunction state is slowly gradually switched to opening state.
4. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that the combined system includes turning
To device (70), the steering pump (30) is connected to the diverter (70), and the diverter by turning to in-line (31)
(70) rotary angle transmitter (72) are provided on, wherein when the atmospheric pressure value of the pressure sensor (61) acquisition reaches described first
When setting atmospheric pressure value:
When detecting that the diverter (70) is in non-steering state by the rotary angle transmitter (72), the controller
(40) control the exhaust valve (13) and be switched to opening state from closed state, then control again the electromagnetic clutch (50) from
Engagement state is switched to discrete state；
When detecting that the diverter (70) is in steering state by the rotary angle transmitter (72), the controller (40)
It controls the exhaust valve (13) and is switched to opening state from closed state, the diverter (70) is then waited to be returned to non-steering
State and then the control electromagnetic clutch (50) are switched to discrete state from engagement state.
5. the combined system of vehicle braking according to claim 4 and steering, which is characterized in that air accumulator (60) tool
There are highest atmospheric pressure value, secondary hyperbar value and the barometric minimum value of setting, the secondary hyperbar value is less than the highest atmospheric pressure value simultaneously
Greater than the barometric minimum value, in which:
When detecting that the diverter (70) is in non-steering state by the rotary angle transmitter (72), first setting
Atmospheric pressure value is the highest atmospheric pressure value, and described second sets atmospheric pressure value as the barometric minimum value；
When detecting that the diverter (70) is in steering state by the rotary angle transmitter (72), the first setting gas
Pressure value is the secondary hyperbar value, and described second sets atmospheric pressure value as the barometric minimum value.
6. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that air accumulator (60) tool
There are highest atmospheric pressure value, secondary hyperbar value and the barometric minimum value of setting, the secondary hyperbar value is less than the highest atmospheric pressure value simultaneously
Greater than the barometric minimum value, the combined system includes diverter (70), and the steering pump (30) is by turning to in-line
(31) it is connected to the diverter (70), and is provided with rotary angle transmitter (72) on the diverter (70), in which:
When detecting that the diverter (70) is in non-steering state by the rotary angle transmitter (72), first setting
Atmospheric pressure value is the highest atmospheric pressure value, and described second sets atmospheric pressure value as the barometric minimum value；
When detecting that the diverter (70) is in steering state by the rotary angle transmitter (72), the first setting gas
Pressure value is the secondary hyperbar value, and described second sets atmospheric pressure value as the barometric minimum value.
7. the combined system of vehicle braking according to claim 5 or 6 and steering, which is characterized in that the secondary hyperbar
Value is the 75%-85% of the highest atmospheric pressure value.
8. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that the combined system includes oil
Case (80) and diverter (70), the oil liquid in the fuel tank (80) are supplied to the diverter by the steering pump (30)
(70), for the diverter (70) provide power steering, and the oil liquid also pass through the controller (40), motor (20) and/
Or reduction gearbox (100), it is the controller (40), motor (20) and/or reduction gearbox (100) provide heat dissipation or lubrication.
9. the combined system of vehicle braking according to claim 8 and steering, which is characterized in that the steering pump (30)
It is connected to the fuel tank (80) by oil suction road (81), and be connected to the diverter (70), institute by turning to in-line (31)
Diverter (70) is stated by turning to oil return line (71) successively by the controller (40), motor (20) and reduction gearbox (100)
It is connected to the fuel tank (80), wherein be provided on the oil suction road (81) between the fuel tank (80) and steering pump (30)
Filter (82) is provided with radiator on the steering oil return line (71) between the diverter (70) and controller (40)
(90)。
10. the combined system of vehicle braking according to claim 8 and steering, which is characterized in that the steering pump
(30) it is connected to the fuel tank (80) by oil suction road (81), and be connected to the diverter by turning to in-line (31)
(70), the diverter (70) is connected to the fuel tank (80) by the controller (40) by turning to oil return line (71),
Wherein, filter (82) are provided on the oil suction road (81) between the fuel tank (80) and steering pump (30), at described turn
It is provided with radiator (90) on the steering oil return line (71) between device (70) and controller (40), the motor (20) and deceleration
Case (100) is located on the oil suction road (81) between the oil inlet and the filter (82) of the steering pump (30).
11. the combined system of vehicle braking according to claim 8 and steering, which is characterized in that the steering pump
(30) it is connected to the fuel tank (80) by oil suction road (81), and be connected to the diverter by turning to in-line (31)
(70), the diverter (70) is connected to the fuel tank by the controller (40) and motor by turning to oil return line (71)
(80), wherein filter (82) are provided on the oil suction road (81) between the fuel tank (80) and steering pump (30), in institute
It states and is provided with radiator (90), the reduction gearbox on the steering oil return line (71) between diverter (70) and controller (40)
(100) internal reservoir has oil liquid for lubricating.
12. the combined system of vehicle braking according to claim 8 and steering, which is characterized in that fuel tank (80) shape
In reduction gearbox described in Cheng Yu (100), the steering pump (30) is connected to the fuel tank (80) by oil suction road (81), and passes through
It turns to in-line (31) to be connected to the diverter (70), the diverter (70) successively passes through institute by turning to oil return line (71)
It states controller (40) and motor (20) and is connected to the fuel tank (80), wherein in the fuel tank (80) and steering pump (30)
Between oil suction road (81) on be provided with filter (82), the steering oil return between the diverter (70) and controller (40)
Radiator (90) are provided on road (71).
13. the combined system of vehicle braking and steering according to any one of claim 9-12, which is characterized in that
Oil temperature sensor (91), the control are provided on steering oil return line (71) between the radiator (90) and controller (40)
Device (40) controls the radiator (90) according to the oil temperature signal that the oil temperature sensor (91) detects and operates.
14. the combined system of vehicle braking according to claim 8 and steering, which is characterized in that the steering pump
(30) the low pressure oil cover (33) for including oil pump installation shell (32) and being located on the outside of oil pump installation shell (32), the low pressure oil cover
(33) be formed as low pressure oil pocket (34) between oil pump installation shell (32), be formed as on the inside of oil pump installation shell (32)
High-voltage oil cavity (35).
15. the combined system of vehicle braking according to claim 14 and steering, which is characterized in that the low pressure oil pocket
(34) it is connected to the oil inlet of steering pump (30).
16. the combined system of vehicle braking according to claim 14 and steering, which is characterized in that the low pressure oil pocket
(34) low pressure oil liquid is packaged in.
17. the combined system of vehicle braking according to claim 14 and steering, which is characterized in that the high-voltage oil cavity
(35) it is connected to the oil outlet of steering pump (30).
18. the combined system of vehicle braking according to claim 14 and steering, which is characterized in that the high-voltage oil cavity
(35) high-voltage oil liquid is packaged in.
19. the combined system of vehicle braking according to claim 14 and steering, which is characterized in that the reduction box casing
(102) it links together with oil pump installation shell (32), the low pressure oil cover (33) covers on the reduction box casing (102) and oil
The outside of pump installation shell (32).
20. the combined system of vehicle braking according to claim 1 and steering, which is characterized in that the motor (20)
The oil pump of electric machine casing (22), the reduction box casing (102) of the reduction gearbox (100) and the steering pump (30) installs shell
(32) fastener is passed sequentially through to be removably joined together to constitute a monolithic case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466196.8A CN106394663B (en) | 2015-07-31 | 2015-07-31 | The combined system of vehicle braking and steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466196.8A CN106394663B (en) | 2015-07-31 | 2015-07-31 | The combined system of vehicle braking and steering |
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| CN106394663A CN106394663A (en) | 2017-02-15 |
| CN106394663B true CN106394663B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510466196.8A Active CN106394663B (en) | 2015-07-31 | 2015-07-31 | The combined system of vehicle braking and steering |
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| Country | Link |
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| CN (1) | CN106394663B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697152B (en) * | 2017-07-11 | 2020-09-18 | 宝沃汽车（中国）有限公司 | Drive system of electric automobile, control method of drive system and electric automobile |
| CN109681620B (en) * | 2019-01-03 | 2020-09-01 | 江麓机电集团有限公司 | Electric drive speed change gear integrating heat dissipation, lubrication and electric control braking |
| CN110816653A (en) * | 2019-11-15 | 2020-02-21 | 江苏陆地方舟新能源车辆股份有限公司 | Steering and braking integrated machine |
| CN114179605B (en) * | 2021-12-29 | 2024-03-01 | 吉林大学 | Multifunctional integrated wheel module with motor redundancy and control method thereof |
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| CN201410892Y (en) * | 2009-02-26 | 2010-02-24 | 盐城市振翔汽车机械有限公司 | Air compressor of passenger train in city with new energy power and power steering oil-pump driving machine set |
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| US7591330B2 (en) * | 2005-10-07 | 2009-09-22 | Ford Global Technologies, Llc | Fluid reservoir |
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| GB588665A (en) * | 1944-10-19 | 1947-05-30 | Werner Fred Boldt | Improvements in or relating to vehicle braking systems to assist steering |
| CN201410892Y (en) * | 2009-02-26 | 2010-02-24 | 盐城市振翔汽车机械有限公司 | Air compressor of passenger train in city with new energy power and power steering oil-pump driving machine set |
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| CN106394663A (en) | 2017-02-15 |
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