CN106394663A - Vehicle braking and steering combined system - Google Patents

Vehicle braking and steering combined system Download PDF

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Publication number
CN106394663A
CN106394663A CN201510466196.8A CN201510466196A CN106394663A CN 106394663 A CN106394663 A CN 106394663A CN 201510466196 A CN201510466196 A CN 201510466196A CN 106394663 A CN106394663 A CN 106394663A
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China
Prior art keywords
steering
pressure value
oil
atmospheric pressure
combined system
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CN201510466196.8A
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Chinese (zh)
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CN106394663B (en
Inventor
杨胜麟
刘彦
李军
王涛
饶国杰
丁生瑞
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The invention provides a vehicle braking and steering combined system comprising an inflator (10), a motor (20), a steering oil pump (30), a controller (40) and a reduction box (100); the motor shaft of the motor (20) is connected with the input shaft of the reduction box; the first output shaft of the reduction box is connected with the steering oil pump; the second output shaft of the reduction box is connected with the inflator through an electromagnetic clutch (50); the controller is used for controlling the electromagnetic clutch to connector or disconnect. By using said structure, the reduction box has two output shafts, so motor power density can be improved, thus reducing motor volume, and reducing cost; in addition, two output shafts of the reduction box are respectively designed with different reduction ratios according to requirements of the inflator and the steering oil pump, i.e., the rotating speed of the motor, the steering oil pump and the inflator can be flexibly designed, and reduction ratios of the two output shafts can be coupled; the whole combined system is compact in structure, small in noises, and high in transmission efficiency and reliability.

Description

Vehicle braking and the combined system turning to
Technical field
The present invention relates to vehicular field, in particular it relates to a kind of braking of vehicle and the combined system turning to.
Background technology
In existing vehicle, especially in electric vehicle, mostly drive pneumatics respectively using two motors Machine and steering pump, used for air compressor in for car load brakes provide air pressure, steering pump be car load steering System provides power-assisted.In this way, the arrangement space on chassis can more be taken, and also meeting Increase car load deadweight Manufacturing cost.
Content of the invention
It is an object of the invention to provide a kind of vehicle braking and the combined system turning to, it can solve the problem that existing Relevant issues in technology.
To achieve these goals, the present invention provides a kind of vehicle braking and the combined system turning to, including Air compressor machine, motor, steering pump, controller and the first reduction box, wherein, the motor shaft of described motor It is connected to the input shaft of described reduction box, the first output shaft of described reduction box is connected to described steering oil Pump, the second output shaft is connected to described air compressor machine by electromagnetic clutch, and described controller is used for controlling institute State electromagnetic clutch to engage or separate.
By technique scheme, motor is connected to steering pump by the first output shaft of reduction box, and Air compressor machine is connected to by the second output shaft and electromagnetic clutch, so whole combined system compact conformation, Noise is little, and transmission efficiency and reliability higher.Further, since reduction box has two output shafts, Can be using the motor that design speed is higher, volume is less, you can to improve the power density of motor, subtract Small machine volume, and can be with reduces cost.Meanwhile, two output shafts can be respectively according to air compressor machine with turn Design different speed reducing ratio to the demand of oil pump, that is, the rotating speed of motor, steering pump and air compressor machine is permissible Flexible design, then completes to mate by the speed reducing ratio of two output shafts.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with Detailed description below is used for explaining the present invention together, but is not construed as limiting the invention.? In accompanying drawing:
Fig. 1 is the principle schematic of the oil circuit design of the combined system according to first embodiment of the invention.
Fig. 2 is the principle schematic of the oil circuit design of the combined system according to second embodiment of the invention.
Fig. 3 is the principle schematic of the oil circuit design of the combined system according to third embodiment of the invention.
Fig. 4 is the principle schematic of the oil circuit design of the combined system according to four embodiment of the invention.
Fig. 5 is the principle schematic of the structure design of the combined system according to one embodiment of the present invention.
Fig. 6 shows that the principle of the structure design of the combined system according to another embodiment of the present invention is shown It is intended to.
Fig. 7 shows that the principle of the structure design of the combined system according to another embodiment of the present invention is shown It is intended to.
Description of reference numerals
10 air compressor machines
12 check valve 13 air bleeding valve
20 motor 22 electric machine casing
30 steering pump 31 turns to in-line
Housing 33 low pressure oil cover installed by 32 oil pumps
34 low pressure oil pocket 35 high-voltage oil cavity
40 controller 50 electromagnetic clutch
60 air accumulator 61 pressure transducer
70 steering gear 71 turns 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 box 102 reduction box casing
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that Specific embodiment described herein is merely to illustrate and explains the present invention, is not limited to this Bright.
Combined system
As shown in figure 1, according to one embodiment of the present invention, disclosing a kind of vehicle braking and turn to Combined system, including air compressor machine 10, motor 20, steering pump 30, reduction box 100 and controller 40, wherein, the motor shaft of described motor 20 is connected to the input shaft of reduction box 100, reduction box 100 The first output shaft be connected to steering pump 30, the second output shaft is connected to sky by electromagnetic clutch 50 Press 10, described controller 40 is used for controlling electromagnetic clutch 50 to engage or separates.
Specifically, motor shaft is connected to steering pump 30 by the first output shaft of reduction box 100, is used for Drive this steering pump 30 to work, with the steering fuel feeding to vehicle, be that the steering operation of vehicle carries For power-assisted;Second output shaft of reduction box 200 is connected to air compressor machine 10 by electromagnetic clutch 50, leads to Cross controller 40 to control this electromagnetic clutch 50 to engage or separate, can optionally drive air compressor machine 10 work, and provide air pressure to the brakes of vehicle as needed.More specifically, steering pump 30 For providing hydraulic oil to steering gear 70, air compressor machine 10 is used for providing air pressure to air accumulator 60.In addition, Motor 20 generally also can be controlled by controller 40.Certainly, the operation of motor 20 can also be led to Cross other control modes or guard's valve controls.
By this embodiment, air compressor machine 10, electromagnetic clutch 50, motor 20, steering pump 30 Can be with close arrangement with reduction box 100, thus whole combined system compact conformation, noise is little, and passes Efficiency of movement and reliability are higher.Further, since two output shafts that motor 20 passes through reduction box 100 drive Dynamic steering pump 30 and air compressor machine 10, therefore can adopt the motor that design speed is higher, volume is less, The power density of motor can be improved, reduce motor volume, and can be with reduces cost.Meanwhile, slow down Two output shafts of case can respectively the demand according to air compressor machine 10 and steering pump 30 and design different Speed reducing ratio, that is, the rotating speed of motor, steering pump and air compressor machine can be then defeated by two with flexible design The speed reducing ratio of shaft completes to mate.
Additionally, the reduction box casing 102 of the electric machine casing 22 of motor 20, reduction box 100 and steering The oil pump installation housing 32 of oil pump 30 can pass sequentially through securing member and be removably joined together to constitute One monolithic case, so can ensure that the structure of the two is compacter, saves the arrangement space on chassis, And it is easy to assembly.
Controller 40 can be the special controller of combined system of the present invention, it would however also be possible to employ car load control Device processed.
The control program of combined system
As shown in figure 1, the combined system of the present invention includes air accumulator 60, this air accumulator 60 is provided with Pressure transducer 61, air compressor machine 10 is connected to air accumulator 60 by gas circuit, and gas circuit is provided with check valve 12, controller 40 controls electromagnetic clutch 50 to engage according to the atmospheric pressure value that pressure transducer 61 detects Or separate.
In this scheme, pressure transducer 61 can be used to the atmospheric pressure value in real-time detection air accumulator 60, And the signal of this atmospheric pressure value is sent to controller 40, controller 40 can judge according to this atmospheric pressure value Air compressor machine 10 is made to work the need of engaging electromagnetic clutch 50.
Generally, air accumulator 60 has the first setting atmospheric pressure value and the second setting atmospheric pressure value, the first setting gas Pressure value is more than described second setting atmospheric pressure value.
When the atmospheric pressure value of pressure transducer 61 collection is less than second and sets atmospheric pressure value, controller 40 controls Electromagnetic clutch 50 is switched to engagement state from released state, and motor 20 drives air compressor machine 10 to work, There is provided air pressure by the check valve 12 in gas circuit in air accumulator 60, to ensure the brakes energy of vehicle Enough normal works.
When the atmospheric pressure value of pressure transducer 61 collection reaches described first and sets atmospheric pressure value, controller 40 Control electromagnetic clutch 50 to be switched to released state from engagement state, air compressor machine 10 does not rerun, stop Continue to provide air pressure to air accumulator 60.
In the present invention, in the gas circuit between air compressor machine 10 and check valve 12, also side is connected to air bleeding valve 13, Controller 40 is used for controlling air bleeding valve 13 to open or close.By this air bleeding valve 13, can be to electromagnetism Row buffering is entered in the unexpected joint of clutch 50 or separation, not only can reduce the mill of electromagnetic clutch 50 Damage additionally it is possible to buffering is because air compressor machine 10 works suddenly or stops and the steering operation to steering gear 70 The impact causing.
Specifically, as one kind preferred embodiment, when the atmospheric pressure value of pressure transducer 61 collection is little When second sets atmospheric pressure value, controller 40 controls described electromagnetic clutch 50 to cut from released state first Change to engagement state, then control air bleeding valve 13 to be switched to closure state from open mode again.In electromagnetism Before clutch 50 engages, air bleeding valve 13 is in open mode, and therefore electromagnetic clutch 50 can be real Existing unloaded joint, such that it is able to reduce the abrasion to electromagnetic clutch 50.Meanwhile, in electromagnetic clutch Although air compressor machine 10 starts running after 50 joints, but the gas that air compressor machine 10 produces will pass through In gas circuit, the other air bleeding valve 13 connecing is discharged, thus substantially and non-loaded, so also will not be to steering gear 70 steering operation causes significantly to impact.
It is further preferred that after electromagnetic clutch 50 engages, described controller 40 controls described row Air valve 13 is lentamente gradually switched to closure state from open mode, that is, realize the slow of air compressor machine 10 and add Carry, rather than load suddenly, the steering operation such that it is able to preferably buffer to steering gear 70 causes Impact, is reduced as far as the adverse effect to feel during Driver Steering Attention.
Time from open mode slowly switching to closure state for the air bleeding valve 13 can enter as the case may be Row debugging, for example, when pneumatics acc power is larger, the time can be suitably longer, conversely, air compressor machine work( When rate is less, the time can be suitably shorter.As long as the handoff procedure of air bleeding valve 13 suitable slow one A bit, air compressor machine 10 just can gradually load, and the working order of steering pump 30 will not change suddenly, Turn to oil pressure in in-line 31 also will not suddenly change, thus not the steering operation to steering gear 70 Cause substantially to impact and affect steering operation feel.
The control process above air compressor machine 10 being loaded is described.Similarly, unload in air compressor machine 10 It is also possible to by the reasonable control of air bleeding valve 13 and clutch is reduced with turning to steering gear 70 during load Impact to operation.
Specifically, when the atmospheric pressure value of pressure transducer 61 collection reaches the first setting atmospheric pressure value, control Device 40 controls air bleeding valve 13 to be switched to open mode from closure state first, then controls electromagnetic clutch again Device 50 is switched to released state from engagement state.
Before separating in electromagnetic clutch 50, air bleeding valve 13 has already turned on, so air compressor machine 10 Load will be released by air bleeding valve 13, such that it is able to buffer the steering operation to steering gear 70 Impact.Afterwards, electromagnetic clutch 50 separates in the case of air compressor machine 10 zero load.
It is also preferable that before electromagnetic clutch 50 separates, controller 40 is also preferably control aerofluxuss Valve 13 is lentamente gradually switched to open mode from closure state, that is, realize the slow unloading of air compressor machine 10, Rather than Condition of Sudden Unloading, such that it is able to preferably buffer the impact of the steering operation to steering gear 70, to the greatest extent Possibly reduce the adverse effect to feel during Driver Steering Attention.
Because air bleeding valve 13 is gradually switched to open mode from closure state, thus air compressor machine 10 can be by Gradually unload, the working order of steering pump 30 will not change suddenly, turn to the oil in in-line 31 Pressure also will not suddenly change, thus not causing substantially to impact on the steering operation of steering gear 70 and affecting Steering operation feel.
In the present invention, air bleeding valve 13 can use reversal valve, proportioning valve, switch valve, damping hole etc. Form, as long as enabling above-mentioned functions, the invention is not limited in this regard.In addition, air bleeding valve 13 Air vent typically can be directly communicated to air.Alternatively, the air vent of air bleeding valve 13 also may be used To lead to other air accumulator or other desired place.
As shown in figure 1, described steering pump 30 passes through steering in-line 31 is connected to steering gear 70, it is The steering operation of steering gear 70 provides power-assisted.Rotary angle transmitter 72 is provided with steering gear 70, for examining Survey the angular signal of steering gear 70, to judge whether steering gear 70 is in steering state.
As a kind of preferred implementation, when the atmospheric pressure value of pressure transducer 61 collection reaches the first setting During atmospheric pressure value, air compressor machine 10 needs to stop air accumulator 60 to be continued to provide air pressure, before this, first Judge whether steering gear 70 is in steering state.
Specifically, when steering gear 70 being detected by rotary angle transmitter 72 being in non-steering state, control Device 40 processed can control air bleeding valve 13 to be switched to open mode from closure state, then control again electromagnetism from Clutch 50 is switched to released state from engagement state.This process can be identical with procedures described above, Repeat no more.
When steering gear 70 is detected by rotary angle transmitter 72 and being in steering state, controller 40 can To control air bleeding valve 13 to be switched to open mode from closure state, then steering gear 70 is waited to be returned to non- After steering state, then electromagnetic clutch 50 is controlled to be switched to released state from engagement state.By this Plant control mode, when steering gear 70 is in steering state, electromagnetic clutch 50 does not temporarily separate, Air compressor machine 10 is avoided to quit work and affect steering operation feel.
It is further to note that in this embodiment, opening of air bleeding valve 13 can with closed manners With identical with situation about being outlined above, lentamente gradually switch, with reduce as much as possible to turn to into The impact of oil circuit 31.
In another preferred embodiment of the present invention, air accumulator 60 has the highest air pressure of setting Value, second highest atmospheric pressure value and barometric minimum value, second highest atmospheric pressure value is less than highest atmospheric pressure value and is more than barometric minimum Value.According to different situations, the first setting atmospheric pressure value above can select highest atmospheric pressure value or secondary Hyperbar value.Preferably, second highest atmospheric pressure value can be chosen as the 75%-85% of highest atmospheric pressure value.
Specifically, when steering gear 70 being detected by rotary angle transmitter 72 being in non-steering state, One sets atmospheric pressure value as highest atmospheric pressure value, and second sets atmospheric pressure value as barometric minimum value;When being passed by corner When sensor 72 detects steering gear 70 and is in steering state, first sets atmospheric pressure value as second highest atmospheric pressure value, Second sets atmospheric pressure value as barometric minimum value.
In other words, when steering gear 70 is in non-steering state, using highest atmospheric pressure value and barometric minimum Value is judging air compressor machine 10 the need of work.And when steering gear 70 is in steering state, then utilize Second highest atmospheric pressure value and barometric minimum value are judging air compressor machine 10 the need of work.
Air pressure in air accumulator 60 is higher, and the power needed for air compressor machine 10 works is also higher, i.e. load Bigger;In addition, the steering oil-feed that during steering gear 70 work, turning velocity is faster, corner is bigger, required Oil pressure in road 31 is also higher, and that is, the power needed for steering pump 30 is also higher.By above-mentioned side Case, can make steering gear 70 and air compressor machine 10 peak power that offsets one from another is operated, such that it is able to select Select the relatively small motor of design power 20, such that it is able to reduces cost.In addition, at steering gear 70 When steering state, the condition that air compressor machine 10 provides air pressure for air accumulator 60 is secondary in air accumulator 60 The load change of hyperbar value, rather than highest atmospheric pressure value, therefore air compressor machine 10 also can be smaller, Thus the start-stop of air compressor machine also can be less to the impact turning to oil pressure in in-line 31, can be to greatest extent Reduce the adverse effect even eliminating to steering operation feel.
Above the control program of combined system is described in detail.In addition, for motor 20 Speech, it equally can also be controlled by the controller 40 of the present invention, i.e. in preferred embodiment party In formula, according to the working condition of the atmospheric pressure value in air accumulator 60 and steering gear 70, controller 40 is not only Air bleeding valve 13 and electromagnetic clutch 50 can be controlled, motor 20 can also be carried out accordingly Control, with by a controller and motor realize vehicle braking and turn to two-in-one so that whole Individual combined system compact conformation and flexible design.
The oil circuit design of combined system
Related to the oil circuit of combined system, the combined system of the present invention mainly includes motor 20, reduction box 100th, steering pump 30, fuel tank 80, steering gear 70 and controller 40.Furthermore it is also possible to selectivity Ground includes filter 82, radiator 90 and oil temperature sensor 91.Oil circuit to combined system first below Summarized.
Fluid in described fuel tank 80 is supplied to steering gear 70 by steering pump 30, is steering gear 70 Power steering is provided, and this fluid may also pass through controller 40, motor 20 and/or reduction box 100, There is provided radiating for it or lubricate.In this embodiment, the fluid of power steering is provided for steering gear 70 Can also be optionally used for providing radiating for controller 40, motor 20 and/or reduction box 100 or lubricate, Without providing extra radiating or lubricating arrangement for it again, so that whole combined system is in structure On compacter, and can reduces cost.
Fig. 1 shows the principle schematic of the oil circuit of the combined system according to first embodiment of the invention.
As shown in figure 1, steering pump 30 is connected to fuel tank 80 by oil suction road 81, and by turn to into Oil circuit 31 is connected to steering gear 70, steering gear 70 pass through turn to oil return line 71 sequentially pass through controller 40, Motor 20 and reduction box 100 and be connected to fuel tank 80, wherein, fuel tank 80 and steering pump 30 it Between oil suction road 81 on filter 82 can also be set, between steering gear 70 and controller 40 turn To on oil return line 71, radiator 90 can also be set.
Preferably, the steering oil return line 81 between radiator 90 and controller 40 can also be arranged Oil temperature sensor 91, controller 40 can control according to the oil temperature signal of this oil temperature sensor 91 detection Radiator 90 operates, such as start-stop of the rotating speed of fan in control radiator 90 or fan etc..
Filter 82 can be used to filter the impurity in fluid, to protect steering pump 30 and steering gear 70. Certainly, in the inventive solutions, filter 82 non-vital, if fluid is pure Spend higher and need not filter, then filter 82 can also omit.
The oil liquid temperature flowing out from steering gear 70 is of a relatively high, and the temperature to cooling oil for the controller 40 Degree requires higher (typically need to be less than 70 degree), and therefore, radiator 90 is preferably provided at controller 40 The upstream turning to oil return line 71 is to cool down to fluid.Oil temperature sensor 91 can be arranged on radiator Between 90 and controller 40, the temperature of the fluid cooling down through radiator 90 is detected, works as detection Oil temperature higher when, radiator can be controlled to improve heat-sinking capability by controller 40, such as improve radiating The rotating speed of fan in device 90;If conversely, when the oil temperature of detection is relatively low, can be controlled by controller 40 Radiator 90 reduces its heat-sinking capability, or even quits work.In the other embodiment being described below, This oil temperature sensor 91 equally can be set, and the present invention repeats no more to this.
Enter motor 20 from the fluid that controller 40 flows out, provide radiating for motor 20, certainly, Lubrication can also be provided for motor 20 simultaneously.Fluid temperature after controller 40 can rise, but Because the heat-resisting ability of motor 20 is stronger, so being sufficient for the cooling requirements of motor 20.Then, The fluid flowing out from motor 20 can be flowed in reduction box 100, is the gear in reduction box 100 Lubrication is provided.Finally, the fluid flowing out from reduction box 100 may return in fuel tank 80.
In this embodiment, the fluid from fuel tank 80 is not only used to provide power-assisted for steering gear 70, And can also be used to is controller 40 and motor 20 offer radiating, can also be reduction box 100 simultaneously There is provided lubrication, therefore whole combined system structure is simple, compact, and design concept is ingenious, can significantly drop Low cost.
Fig. 2 shows the principle schematic of the oil circuit of the combined system according to second embodiment of the invention.
As shown in Fig. 2 steering pump 30 can be connected to fuel tank 80 by oil suction road 81, and by turning It is connected to steering gear 70 to in-line 31, described steering gear 70 is passed through to turn to oil return line 71 through controlling Device 40 and be connected to fuel tank 80, wherein, oil suction road 81 between fuel tank 80 and steering pump 30 On be provided with filter 82, on the steering oil return line 71 between steering gear 70 and controller 40 arrange Radiator 90, motor 20 and reduction box 100 is had to be located at oil-in and the filter 82 of steering pump 30 Between oil suction road 81 on.
In this embodiment, the fluid from fuel tank 80 first passes around reduction box 100 and enters motor 20, provide radiating for motor 20, the radiating effect of therefore motor is more preferable.Then, fluid is in motor 20 It is back in reduction box 100 after middle circulation, the lubricant effect of reduction box 100 can be to be fully ensured.? Afterwards, fluid flows into steering pump 30 from reduction box 100 again, is supplied to steering gear through steering pump 30 70.
Fig. 3 shows the principle schematic of the oil circuit of the combined system according to third embodiment of the invention.
As shown in figure 3, described steering pump 30 is connected to described fuel tank 80 by oil suction road 81, and lead to Cross steering in-line 31 and be connected to described steering gear 70, described steering gear 70 is passed through to turn to oil return line 71 Sequentially pass through described controller 40 and motor 20 and be connected to fuel tank 80, wherein, in fuel tank 80 with turn It is provided with filter 82 on the oil suction road 81 between oil pump 30, in steering gear 70 and controller 40 Between steering oil return line 71 on be provided with radiator 90, the inside of described reduction box 100 individually stores There is fluid for lubrication.
In this embodiment, the fluid flowing out from motor 20 is returned directly to fuel tank 80, and not Again through reduction box 100.In addition, the inside of reduction box 100 can individually store fluid for lubrication. Because storing single fluid in reduction box 100 to be used for lubricating, this fluid is usually located at reduction box casing Bottom, thus can reduce that gear in reduction box produces when rotating stir oil loss.
Fig. 4 shows the principle schematic of the oil circuit of the combined system according to four embodiment of the invention.
As shown in figure 4, described fuel tank 80 can also be formed in described reduction box 100, such as by subtracting The lower storage fluid of the housing of fast case 100, uses as fuel tank 80.
Described steering pump 30 is connected to described fuel tank 80 by oil suction road 81, that is, in reduction box 100, And it is connected to described steering gear 70 by turning to in-line 31, steering gear 70 is passed through to turn to oil return line 71 Sequentially pass through described controller 40 and motor 20 and be connected to fuel tank 80, wherein, in fuel tank 80 with turn It is provided with filter 82 on the oil suction road 81 between oil pump 30, this filter 82 can also direct cloth Put in reduction box 100.In addition, the steering oil return line 71 between steering gear 70 and controller 40 On can be provided with radiator 90.
In this embodiment, fuel tank 80 is formed directly in reduction box 100, and filter 82 also may be used To be set directly in reduction box 100, therefore overall structure is compacter, is conducive to saving chassis space, Reduces cost.In addition, the fluid in reduction box 100 can also provide lubrication for gear therein simultaneously.
The structure design of combined system
In the present invention, as a kind of preferred implementation, can also be to motor 20, steering pump 30 It is optimized design with the structure of reduction box 100, below this is described in detail.
Fig. 5 shows that the principle of the structure design of the combined system according to one embodiment of the present invention is illustrated Figure.Shown oil circuit direction in the structure of this embodiment is the oil circuit side in Fig. 1 illustrated embodiment To it can also be applied to the oil circuit direction in other embodiment, and the present invention is not repeated to this to describe.
As shown in figure 5, as a kind of embodiment, steering pump 30 includes oil pump and installs housing 32 He The low pressure oil cover 33 in housing 32 outside is installed positioned at this oil pump, housing installed by this low pressure oil cover 33 and oil pump Be formed as low pressure oil pocket 34, the inner side that housing 32 installed by described oil pump is formed as high-voltage oil cavity 35 between 32.
At work, low pressure oil pocket 34 can be connected with the oil-in of steering pump 30, and inside will be contained Or it is full of low pressure fluid, the fluid connecting before steering pump pumping with fuel tank.By this Mode, can be with effectively utilizes fluid, and structure is simple, easily realizes.Select as a kind of, low pressure oil pocket Low pressure fluid can also be individually packaged with 34.In this way, because low pressure fluid is individually encapsulated in In low pressure oil pocket 34, and it is not involved in circulating, therefore filtering soundproof effect is more preferable.
Similarly, at work, high-voltage oil cavity 35 can be connected with the oil-out of steering pump 30, because Inside this will containing or be full of high-voltage oil liquid, connect with steering gear after steering pump pumping Fluid.Select as a kind of, in high-voltage oil cavity 35, can also individually be packaged with high-voltage oil liquid.
In this way, the noise producing during steering pump 30 work will sequentially pass through high-voltage oil cavity 35 In high-voltage oil liquid, oil pump housing 32, the low pressure fluid in low pressure oil pocket 34 and low pressure oil cover 33 are installed Multi-absorption intercept, thus travel to the external world noise will substantially reduce.Simultaneously as steering pump The fluid of 30 outputs typically all can have pulsation, and the presence of high-voltage oil cavity 35 can effectively buffer and suppress oil The pulsation of liquid, so that the oil pressure being supplied to steering gear 70 is more stable, is conducive to the steering of steering gear 70 Operation.
In addition, as a kind of preferred implementation, motor 20 includes electric machine casing 22, reduction box 100 Including reduction box casing 102.Housing 32 installed by electric machine casing 22, reduction box casing 102 and oil pump can Linked together with successively from left to right (direction shown in Fig. 5), for example, pass through securing member detachable Link together.By this embodiment, total is compacter, can save arrangement space.
Fig. 6 shows that the principle of the structure design of the combined system according to another embodiment of the present invention is shown It is intended to.Shown oil circuit direction in the structure of this embodiment is also using in Fig. 1 illustrated embodiment Oil circuit direction but it is also possible to the oil circuit direction that is applied in other embodiment, the present invention is to this no longer Repeated description.
As shown in fig. 6, housing 32 installed by reduction box casing 102 and oil pump linking together, low pressure oil Cover 33 can cover on reduction box casing 102 and the outside of housing 32 installed by oil pump.In other words, low pressure oil Cover 33 not only wraps up steering pump 30, but also wraps up reduction box 100, therefore not only can reduce and turn Pass when being delivered to the noise of outside when operating to oil pump 30, but also reduction box 100 operating can be reduced It is delivered to the noise of outside, especially when motor 20 rotating speed is higher, the noise reduction to reduction box 100 Become apparent from.
Fig. 7 shows that the principle of the structure design of the combined system according to another embodiment of the present invention is shown It is intended to.Shown oil circuit direction in the structure of this embodiment is the oil circuit in Fig. 4 illustrated embodiment Direction, it can also be applied to the oil circuit direction in other embodiment, and the present invention is not repeated to this to retouch State.
As shown in fig. 7, the different place of this embodiment is, fuel tank 80 is formed at reduction box 100 In, filter 82 can be arranged in reduction box 100 simultaneously.In addition, in this embodiment, Low pressure oil pocket 34 can be connected with fuel tank 80, with using the fluid in fuel tank 80.In this way, Can be with effectively utilizes fluid, structure is simple, easily realizes.Select as a kind of, that is, shown in Fig. 7 Scheme, can also individually be packaged with low pressure fluid in low pressure oil pocket 34.In this way, due to low Force feed liquid is individually encapsulated in low pressure oil pocket 34, and is not involved in circulating, and therefore filters soundproof effect More preferably.
Describe the preferred embodiment of the present invention above in association with accompanying drawing in detail, but, the present invention does not limit Detail in above-mentioned embodiment, in the range of the technology design of the present invention, can be to the present invention Technical scheme carry out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not The repetition wanted, the present invention no longer separately illustrates to various possible compound modes.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, for example, Multiple enforcements for the oil circuit design of the numerous embodiments of the control program of combined system, combined system The numerous embodiments of the structure design of mode and combined system, in the case of not producing contradiction To carry out combination in any, as long as it is without prejudice to the thought of the present invention, it is public that it equally should be considered as present invention institute The content opened.

Claims (23)

1. a kind of braking of vehicle and the combined system that turns to it is characterised in that include air compressor machine (10), Motor (20), steering pump (30), controller (40) and reduction box (100), described motor (20) Motor shaft be connected to the input shaft of described reduction box (100), the first of described reduction box (100) is defeated Shaft is connected to described steering pump (30), and the second output shaft is connected to by electromagnetic clutch (50) Described air compressor machine (10), described controller (40) is used for controlling described electromagnetic clutch (50) to engage Or separate.
2. vehicle according to claim 1 braking and the combined system that turns to it is characterised in that This combined system includes air accumulator (60), and this air accumulator (60) is provided with pressure transducer (61), Described air compressor machine (10) is connected to described air accumulator (60) by gas circuit, and described gas circuit is provided with list To valve (12), atmospheric pressure value that described controller (40) is detected according to described pressure transducer (61) Lai Control described electromagnetic clutch (50) to engage or separate.
3. vehicle according to claim 2 braking and the combined system that turns to it is characterised in that In gas circuit between described air compressor machine (10) and check valve (12), also side is connected to air bleeding valve (13), Described controller (40) is used for controlling described air bleeding valve (13) to open or close.
4. vehicle according to claim 3 braking and the combined system that turns to it is characterised in that Described air accumulator (60) has the first setting atmospheric pressure value and the second setting atmospheric pressure value, described first setting gas Pressure value is more than described second setting atmospheric pressure value, wherein:
When the atmospheric pressure value that described pressure transducer (61) gathers is less than described second and sets atmospheric pressure value, institute Stating controller (40) controls described electromagnetic clutch (50) to be switched to engagement state from released state, so Described air bleeding valve (13) is controlled to be switched to closure state from open mode afterwards again;
When the atmospheric pressure value that described pressure transducer (61) gathers reaches described first and sets atmospheric pressure value, institute Stating controller (40) controls described air bleeding valve (13) to be switched to open mode, Ran Houzai from closure state Described electromagnetic clutch (50) is controlled to be switched to released state from engagement state.
5. vehicle according to claim 4 braking and the combined system that turns to it is characterised in that When the atmospheric pressure value that described pressure transducer (61) gathers is less than described second and sets atmospheric pressure value, described control Device (40) processed controls described air bleeding valve (13) to be lentamente gradually switched to closure state from open mode.
6. vehicle according to claim 4 braking and the combined system that turns to it is characterised in that When the atmospheric pressure value that described pressure transducer (61) gathers reaches described first and sets atmospheric pressure value, described control Device (40) processed controls described air bleeding valve (13) to be lentamente gradually switched to open mode from closure state.
7. vehicle according to claim 4 braking and the combined system that turns to it is characterised in that This combined system includes steering gear (70), and described steering pump (30) passes through to turn to in-line (31) It is connected to this steering gear (70), and rotary angle transmitter (72) is provided with this steering gear (70), its In, when the atmospheric pressure value that described pressure transducer (61) gathers reaches described first and sets atmospheric pressure value:
It is in non-steering state when described steering gear (70) is detected by described rotary angle transmitter (72) When, described controller (40) controls described air bleeding valve (13) to be switched to open mode from closure state, Then described electromagnetic clutch (50) is controlled to be switched to released state from engagement state again;
When described steering gear (70) being detected by described rotary angle transmitter (72) being in steering state, Described controller (40) controls described air bleeding valve (13) to be switched to open mode from closure state, then After waiting described steering gear (70) to be returned to non-steering state, then control described electromagnetic clutch (50) It is switched to released state from engagement state.
8. vehicle according to claim 7 braking and the combined system that turns to it is characterised in that Described air accumulator (60) has highest atmospheric pressure value, second highest atmospheric pressure value and the barometric minimum value of setting, described Second highest atmospheric pressure value is less than described highest atmospheric pressure value and is more than described barometric minimum value, wherein:
It is in non-steering state when described steering gear (70) is detected by described rotary angle transmitter (72) When, described first sets atmospheric pressure value as described highest atmospheric pressure value, described second set atmospheric pressure value as described Low pressure value;
When described steering gear (70) being detected by described rotary angle transmitter (72) being in steering state, Described first sets atmospheric pressure value as described second highest atmospheric pressure value, and described second sets atmospheric pressure value as described minimum gas Pressure value.
9. vehicle according to claim 4 braking and the combined system that turns to it is characterised in that Described air accumulator (60) has highest atmospheric pressure value, second highest atmospheric pressure value and the barometric minimum value of setting, described Second highest atmospheric pressure value is less than described highest atmospheric pressure value and is more than described barometric minimum value, and described combined system includes Steering gear (70), described steering pump (30) is passed through steering in-line (31) and is connected to this steering gear , and rotary angle transmitter (72) is provided with this steering gear (70), wherein (70):
It is in non-steering state when described steering gear (70) is detected by described rotary angle transmitter (72) When, described first sets atmospheric pressure value as described highest atmospheric pressure value, described second set atmospheric pressure value as described Low pressure value;
When described steering gear (70) being detected by described rotary angle transmitter (72) being in steering state, Described first sets atmospheric pressure value as described second highest atmospheric pressure value, and described second sets atmospheric pressure value as described minimum gas Pressure value.
10. vehicle braking according to claim 8 or claim 9 and the combined system turning to, its feature exists In described second highest atmospheric pressure value is the 75%-85% of described highest atmospheric pressure value.
11. vehicles according to claim 1 brakings and the combined system that turns to it is characterised in that This combined system includes fuel tank (80) and steering gear (70), and the fluid in described fuel tank (80) passes through Described steering pump (30) is supplied to described steering gear (70), is that described steering gear (70) offer turns To power-assisted, and this fluid is also through described controller (40), motor (20) and/or reduction box (100), There is provided radiating for described controller (40), motor (20) and/or reduction box (100) or lubricate.
12. vehicles according to claim 11 brakings and the combined system that turns to it is characterised in that Described steering pump (30) is connected to described fuel tank (80) by oil suction road (81), and by turning to In-line (31) is connected to described steering gear (70), and described steering gear (70) passes through to turn to oil return line (71) sequentially pass through described controller (40), motor (20) and reduction box (100) and be connected to institute State fuel tank (80), wherein, oil suction road (81) between described fuel tank (80) and steering pump (30) On be provided with filter (82), the steering between described steering gear (70) and controller (40) is returned Radiator (90) is provided with oil circuit (71).
13. vehicles according to claim 11 brakings and the combined system that turns to it is characterised in that Described steering pump (30) is connected to described fuel tank (80) by oil suction road (81), and by turning to In-line (31) is connected to described steering gear (70), and described steering gear (70) passes through to turn to oil return line (71) it is connected to described fuel tank (80) through described controller (40), wherein, in described fuel tank (80) it is provided with filter (82), in institute on the oil suction road (81) and steering pump (30) between State and be provided with radiator (90) on the steering oil return line (71) between steering gear (70) and controller (40), Described motor (20) and reduction box (100) are located at the oil-in of described steering pump (30) and described On oil suction road (81) between filter (82).
14. vehicles according to claim 11 brakings and the combined system that turns to it is characterised in that Described steering pump (30) is connected to described fuel tank (80) by oil suction road (81), and by turning to In-line (31) is connected to described steering gear (70), and described steering gear (70) passes through to turn to oil return line (71) it is connected to described fuel tank (80) through described controller (40) and motor, wherein, in institute State and be provided with filter (82) on the oil suction road (81) between fuel tank (80) and steering pump (30), It is provided with radiating on steering oil return line (71) between described steering gear (70) and controller (40) Device (90), the internal reservoir of described reduction box (100) has fluid for lubrication.
15. vehicles according to claim 11 brakings and the combined system that turns to it is characterised in that Described fuel tank (80) is formed in described reduction box (100), and described steering pump (30) passes through to inhale Oil circuit (81) is connected to described fuel tank (80), and is connected to described turning by turning to in-line (31) To device (70), described steering gear (70) is passed through steering oil return line (71) and is sequentially passed through described controller (40) and motor (20) and be connected to described fuel tank (80), wherein, in described fuel tank (80) and It is provided with filter (82), in described steering gear on oil suction road (81) between steering pump (30) (70) it is provided with radiator (90) on the steering oil return line (71) and controller (40) between.
The combined system that 16. vehicles according to any one in claim 12-15 are braked and turned to, It is characterized in that, the steering oil return line (71) between described radiator (90) and controller (40) On be provided with oil temperature sensor (91), described controller (40) according to this oil temperature sensor (91) examine The oil temperature signal surveyed controls described radiator (90) operating.
17. vehicles according to claim 11 brakings and the combined system that turns to it is characterised in that Described steering pump (30) includes oil pump and installs housing (32) and be located at this oil pump installation housing (32) The low pressure oil cover (33) in outside, this low pressure oil cover (33) and oil pump are installed and are formed between housing (32) For low pressure oil pocket (34), the inner side that housing (32) installed by described oil pump is formed as high-voltage oil cavity (35).
18. vehicles according to claim 17 brakings and the combined system that turns to it is characterised in that Described low pressure oil pocket (34) is connected with the oil-in of steering pump (30).
19. vehicles according to claim 17 brakings and the combined system that turns to it is characterised in that It is packaged with low pressure fluid in described low pressure oil pocket (34).
20. vehicles according to claim 17 brakings and the combined system that turns to it is characterised in that Described high-voltage oil cavity (35) is connected with the oil-out of steering pump (30).
21. vehicles according to claim 17 brakings and the combined system that turns to it is characterised in that It is packaged with high-voltage oil liquid in described high-voltage oil cavity (35).
22. vehicles according to claim 17 brakings and the combined system that turns to it is characterised in that Described reduction box casing (102) and oil pump are installed housing (32) and are linked together, described low pressure oil cover (33) cover on described reduction box casing (102) and the outside of housing (32) installed by oil pump.
23. vehicles according to claim 1 brakings and the combined system that turns to it is characterised in that The electric machine casing (22) of described motor (20), the reduction box casing (102) of described reduction box (100) Installing housing (32) with the oil pump of described steering pump (30), to pass sequentially through securing member detachably connected Together to constitute a monolithic case.
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CN107697152A (en) * 2017-07-11 2018-02-16 宝沃汽车(中国)有限公司 The drive system of electric automobile, the control method of drive system and electric automobile
CN109681620A (en) * 2019-01-03 2019-04-26 江麓机电集团有限公司 A kind of electrically driven speed change device integrating heat radiation lubricating 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
CN114179605A (en) * 2021-12-29 2022-03-15 吉林大学 Motor redundancy multifunctional integrated wheel module and control method thereof

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CN114179605A (en) * 2021-12-29 2022-03-15 吉林大学 Motor redundancy multifunctional integrated wheel module and control method thereof
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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