CN103112351A - Electric vehicle and auxiliary engine drive device and auxiliary drive system thereof - Google Patents
Electric vehicle and auxiliary engine drive device and auxiliary drive system thereof Download PDFInfo
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- CN103112351A CN103112351A CN2013100521201A CN201310052120A CN103112351A CN 103112351 A CN103112351 A CN 103112351A CN 2013100521201 A CN2013100521201 A CN 2013100521201A CN 201310052120 A CN201310052120 A CN 201310052120A CN 103112351 A CN103112351 A CN 103112351A
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Abstract
The invention discloses an electric vehicle, and an auxiliary engine drive device of the electric vehicle, and an auxiliary engine drive system of the electric vehicle. The auxiliary engine drive device comprises a brake power part and a power assisting steering pump, and further comprises a double-shaft motor with two output ends and two clutches. The two output ends of the double-shaft motor are respectively connected with the brake power part and the power assisting steering pump through one clutch. Due to the fact that the double-shaft motor is used for driving the brake power part and the power assisting steering pump, compared with the background technology, hardware cost is saved. Due to the fact that the clutches are used for controlling the connection of the double-shaft motor, the brake power part, and the power assisting steering pump, an auxiliary engine system can be prevented from being in a normal stream mode, only when a brake requirement or a steering requirement is needed, the brake power part or the power assisting steering pump works, and under other situations, the double-shaft motor idles in a non-loaded mode and the energy consumption of the double-shaft motor is little. Therefore, compared with the auxiliary engine system in the normal stream state of the background technology, the energy consumption of the auxiliary engine system is largely reduced. In addition, response speed of the clutches is quick and response speed requirements of braking can be guaranteed.
Description
Technical field
The present invention relates to the vehicle technology field, particularly a kind of elec. vehicle and auxiliary machine driver thereof, subsidiary engine drive system.
Background technology
Elec. vehicle comprises oil-electric vehicle and pure electric automobile, and the auxiliary system of the type automobile comprises electric braking air compressor system and servo steering system.
The electric braking air compressor system comprises motor, Air compressor and vacuum booster pump, and the motor-driven Air compressor is to provide pressurized air, and Air compressor to vacuum booster pump, produces required brake boost with compressed air delivery.Pure electric automobile generally needs a cover Air compressor, and hybrid vehicle is accompanied with a cover Air compressor on the body of driving engine own, and a cover used for air compressor also need be set work under electric-only mode, to take full advantage of the power of driving engine, saves energy consumption.Therefore, hybrid vehicle has two Air compressors.
Servo steering system comprises motor, power-assisted steering pump and power-assisted oil cylinder, the outside pump oil of motor-driven steering pump, and fluid drives the power-assisted cylinder action, drives axletree and rotates and realize turning to.
Yet there is following technical matters in above-mentioned elec. vehicle:
The first, above-mentioned auxiliary system need to arrange two cover motors, is respectively used to drive Air compressor and power-assisted steering pump, and hardware is more, productive costs and control cost all higher;
The second, the speed of response in order to guarantee to brake and turn to, especially braking response speed, Air compressor and power-assisted steering pump all work in permanent current state (always working), the general break-make that relies on the valve element to control Air compressor and vacuum booster pump, power-assisted steering pump and power-assisted oil cylinder, namely two overlap motors loaded work piece all the time, have caused power wastage.For energy-conservation, there is following processing mode in prior art: generate optimized rotating speed by the running state information that gathers Air compressor load signal, power signal and tach signal, and by the Frequency Converter Control motor speed, make auxiliary system work in optimized rotating speed, reach energy-saving effect.Yet this kind mode need to gather many information, and the calculating of optimized rotating speed can only dependency theory and test, with the necessary being deviation; The cost of control unit and complexity also hinder its industrialization; Frequency converter is more expensive, controls also comparatively complicated.
In view of this, how improving elec. vehicle subsidiary engine drive system, produce, control cost to reduce, is the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
For solving the problems of the technologies described above, purpose of the present invention is for providing a kind of elec. vehicle and auxiliary machine driver thereof, subsidiary engine drive system.This auxiliary machine driver can reach minimizing hardware by dual-axle motor and power-transfer clutch are set, and reduces the purpose of producing, controlling cost.
Elec. vehicle auxiliary machine driver provided by the invention, comprise brake power parts, power-assisted steering pump, also comprise dual-axle motor and two power-transfer clutchs with two mouths, two mouths of described dual-axle motor connect described brake power parts and described power-assisted steering pump by a described power-transfer clutch respectively.
This elec. vehicle auxiliary machinery device provides power by a dual-axle motor for brake power parts and power-assisted steering pump.When power-transfer clutch closure or separation, corresponding brake power parts or power-assisted steering pump are connected with dual-axle motor or disconnect, and dual-axle motor is realized power transmission or tick over.As seen, this auxiliary machinery device has following technique effect:
The first, adopt dual-axle motor to drive brake power parts and power-assisted steering pump, compared to two cover electric systems of background technology, saved hardware cost;
The second, adopt the clutch control dual-axle motor to be connected the connection of power-assisted steering pump with the brake power parts, can avoid auxiliary system to be in the permanent current state, only when having braking or turning to demand, brake power parts or power-assisted steering pump are just worked, in other situations, the dual-axle motor tick over, due to non-loaded, the energy consumption of dual-axle motor is very little.Therefore, the permanent current state in the background technology, the energy consumption of this auxiliary system is significantly reduced.In addition, power closed by power-transfer clutch or separation control dual-axle motor is exported, and the power-transfer clutch fast response time can guarantee the speed of response demand of braking.
Preferably, described auxiliary machine driver also comprises vacuum booster pump, and described brake power parts are for driving the Air compressor of described vacuum booster pump.
Air compressor and vacuum booster pump coordinate the action of driving stop mechanism, have braking effect preferably.And in prior art, for motor vehicle driven by mixed power, its driving engine carries Air compressor, and under launch modes, by this Air compressor work of engine drive, under electric model, starter motor drives another Air compressor work, to save energy consumption.And in the present embodiment, under the power-transfer clutch effect, dual-axle motor can tick over, no matter be engine mode or electric model, energy consumption is all less, therefore need not to arrange a cover Air compressor on driving engine again, be that auxiliary machine driver in the present invention or drive system are guaranteeing to reduce under the prerequisite of energy consumption, one cover Air compressor only is set get final product, and control the time need not to distinguish engine mode and electric model, controlling cost also further is minimized.
Preferably, two described power-transfer clutchs are magnetic clutch.
Closed or the speed of response that separate of magnetic clutch is very fast, can satisfy the speed responsive demand of braking.
Preferably, two described power-transfer clutchs are hydraulic control clutch.
Closed or the speed of response that separate of hydraulic control clutch is very fast, can satisfy the speed responsive demand of braking.
Preferably, the rated speed of rotation of described Air compressor and described power-assisted steering pump equates.
So design when dual-axle motor drives Air compressor and power-assisted steering pump, need not the rotating speed of dual-axle motor is controlled, and namely need not to arrange frequency converter, controls cost lower.
Preferably, the maximum torque of described dual-axle motor is greater than the maximum torque sum of described Air compressor and described power-assisted steering pump.
So, can guarantee dual-axle motor under any operating mode, all can successfully drive the action of Air compressor and power-assisted steering pump.
The present invention also provides a kind of elec. vehicle subsidiary engine drive system, comprises the as above described elec. vehicle auxiliary machine driver of any one; Also comprise the controller that receives speed-slackening signal and turn sign, described controller is controlled two described power-transfer clutchs closures or separates according to control signal and turn sign.
This auxiliary system comprises above-mentioned auxiliary machinery device, can reach the technique effect of auxiliary machinery device as mentioned above, repeats no more herein.
Preferably, described controller is the entire car controller of elec. vehicle.
So design need not to arrange separately the controller of controlling two power-transfer clutchs, saves hardware; And entire car controller generally can collect speed-slackening signal and turn sign, directly utilizes the signal that gathers to get final product, and need not separately to establish circuit, thus simplied system structure.
The present invention also provides a kind of elec. vehicle, comprises main drive system and vehicle subsidiary engine drive system, it is characterized in that, described vehicle subsidiary engine drive system is the described vehicle subsidiary engine of above-mentioned any one drive system.
Elec. vehicle comprises above-mentioned auxiliary system, and because auxiliary system has above-mentioned technique effect, the elec. vehicle with this auxiliary system also has identical technique effect.
Description of drawings
Fig. 1 is the structured flowchart of a kind of specific embodiment of elec. vehicle auxiliary machine driver provided by the present invention;
Fig. 2 is the structured flowchart of a kind of specific embodiment of elec. vehicle subsidiary engine drive system provided by the present invention.
In Fig. 1-2:
11 dual-axle motors, 12 Air compressors, 13 power-assisted steering pumps, 141 firsts clutch, 142 second clutch, 15 vacuum booster pumps, 16 power-assisted oil cylinders, 17 controllers
The specific embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structured flowchart of a kind of specific embodiment of elec. vehicle auxiliary machine driver provided by the present invention.
Elec. vehicle auxiliary machine driver in this embodiment, comprise the brake power parts that drive stop mechanism, comprise the Air compressor 12 shown in Fig. 1, and the power-assisted steering pump 13 that drives the steering swivel system action, can understand referring to background technology principle of work, the function of Air compressor 12 and power-assisted steering pump 13.
In addition, this auxiliary machine driver also comprises dual-axle motor 11 and two power-transfer clutchs with two mouths, first clutch 141 as shown in fig. 1 and second clutch 142.Two mouths of dual-axle motor 11 can be positioned at the two ends of dual-axle motor 11, and when dual-axle motor 11 rotated, two mouths are outputting power simultaneously.Two mouths of dual-axle motor 11 connect Air compressor 12 and power-assisted steering pump 13 by a power-transfer clutch respectively, as shown in Figure 1, one mouth of dual-axle motor 11 connects Air compressor 12 by first clutch 141, and another mouth connects power-assisted steering pump 13 by second clutch 142.
So design, a cover dual-axle motor 11 namely can be Air compressor 12, power-assisted steering pump 13 provides power, and two cover motors compared to background technology can save a cover motor.The specific works process can be understood with reference to figure 2.
Fig. 2 is the structured flowchart of a kind of specific embodiment of elec. vehicle subsidiary engine drive system provided by the present invention.
This subsidiary engine drive system comprises above-mentioned auxiliary machine driver, also comprises controller 17, and controller 17 can receive turn sign and speed-slackening signal.Turn sign can come from the monitoring rotation direction sensor that is arranged in steering system, speed-slackening signal can come from brake pedal position sensor, difference according to steering mode (automatically controlled or non-automatically controlled), brake mode, can select corresponding signal pickup assembly, specifically can understand with reference to prior art.When receiving turn sign and speed-slackening signal, controller 17 controls the action of first clutch 141, second clutch 142 according to following control policy:
A, receive speed-slackening signal, do not receive turn sign:
Export closed Air compressor 12 sides first clutch 141, separate the instruction of the second clutch 142 of power-assisted steering pump 13 sides, dual-axle motor 11 mouths are connected with Air compressor 12, dual-axle motor 11 drives Air compressor 12 work, Air compressor 12 drives vacuum booster pump 15 actions, vacuum booster pump 15 drives stop mechanism, the performance braking function; At this moment, second clutch 142 separates, and another mouth and power-assisted steering pump 13 disconnect, and power-assisted steering pump 13 is not worked;
B, receive turn sign, do not receive speed-slackening signal:
Export closed power-assisted steering pump 13 sides second clutch 142, separate the instruction of the first clutch 141 of Air compressor 12 sides, dual-axle motor 11 mouths are connected with power-assisted steering pump 13, dual-axle motor 11 drives power-assisted steering pump 13 work, power-assisted steering pump 13 is delivered to power-assisted oil cylinder 16 with high pressure oil, the performance turning function; At this moment, first clutch 141 separates, and another mouth and Air compressor 12 disconnect, and Air compressor 12 is not worked;
C, receive turn sign and speed-slackening signal:
Export the instruction of second clutch 142 of first clutch 141, power-assisted steering pump 13 sides of closed Air compressor 12 sides, make two mouths of dual-axle motor 11 connect respectively Air compressor 12 and power-assisted steering pump 13, drive both simultaneously and rotate, turn to and braking function with performance simultaneously;
D, do not receive turn sign and speed-slackening signal:
The instruction of the first clutch 141 of output separation Air compressor 12 sides, the second clutch 142 of power-assisted steering pump 13 sides, two mouths of dual-axle motor 11 are disconnected with Air compressor 12 and power-assisted steering pump 13 respectively, Air compressor 12 and power-assisted steering pump 13 run out of steam, all do not work, dual-axle motor 11 idle running.
Above-mentioned elec. vehicle auxiliary machinery device and auxiliary system have following technique effect:
The first, adopt dual-axle motor 11 to drive Air compressor 12 and power-assisted steering pump 13, compared to background technology, saved hardware cost;
The second, adopt that clutch control dual-axle motor 11 is connected with Air compressor, the connection of power-assisted steering pump 13, can avoid auxiliary system to be in the permanent current state, only when having braking or turning to demand, Air compressor 12 or power-assisted steering pump 13 are just worked, in other situations, dual-axle motor 11 tick overs, due to non-loaded, the energy consumption of dual-axle motor 11 is very little.Therefore, the permanent current state in the background technology, the energy consumption of this auxiliary system is significantly reduced.In addition, power closed by power-transfer clutch or separation control dual-axle motor 11 is exported, and the power-transfer clutch fast response time can guarantee the speed of response demand of braking.
And in prior art, for motor vehicle driven by mixed power, its driving engine carries Air compressor, and under engine mode, by this Air compressor work of engine drive, under electric model, starter motor drives another Air compressor work, to save energy consumption.And in the present embodiment, under the power-transfer clutch effect, dual-axle motor 11 can tick over, no matter be engine mode or electric model, energy consumption is all less, therefore need not to arrange a cover Air compressor on driving engine again, be that auxiliary machine driver in the present invention or drive system are guaranteeing to reduce under the prerequisite of energy consumption, one cover Air compressor only is set get final product, and control the time need not to distinguish engine mode and electric model, controlling cost also further is minimized.
In order to improve the speed of response of power-transfer clutch quick make or separation, two power-transfer clutchs in above-described embodiment are preferably magnetic clutch, controller 17 direct signals of auxiliary system connect first clutch 141 and second clutch 142, the closed or separation of automatically controlled two power-transfer clutchs.Certainly, can be also hydraulic control clutch, speed of response also can satisfy user demand, and at this moment, controller 17 is by the closed or separation of the break-make control clutch of oil circuit control.
For the various embodiments described above, during type selecting, the rated speed of rotation of Air compressor 12 and power-assisted steering pump 13 can equate, herein equate that the rated speed of rotation that is not limited to both is fully equal, can be also about equally.So, when dual-axle motor 11 drives Air compressor 12 and power-assisted steering pump 13, the rotating speed of dual-axle motor 11 can be set as consistent with both rated speed of rotation, during work, dual-axle motor 11 is set rotational speed according to this always and is got final product, need not the rotating speed of dual-axle motor 11 is controlled, namely need not to arrange frequency converter, control cost lower.
In above-described embodiment, the maximum torque of dual-axle motor 11 to guarantee dual-axle motor 11 under any operating mode, all can successfully drive Air compressor 12 and power-assisted steering pump 13 actions more preferably greater than the maximum torque sum of Air compressor 12 and power-assisted steering pump 13.In addition, the power of dual-axle motor 11 should be enough large, drives simultaneously Air compressor 12, power-assisted steering pump 13 with rated speed of rotation work to satisfy.
Need to prove, in above-described embodiment, the brake power parts are Air compressor 12, drive 15 actions of vacuum power pump by Air compressor 12, and then drive the stop mechanism action.Can expect, difference according to braking requirement and signals of vehicles, the brake power parts can be also other elements that power can be provided, such as for the type drg that surges, directly driven by the pump housing, this moment, the pump housing was the brake power parts, and the mouth of dual-axle motor 11 can connect this pump housing by power-transfer clutch.
Except above-mentioned elec. vehicle auxiliary machinery device, auxiliary system, the present invention also provides a kind of elec. vehicle, comprises main drive system and vehicle subsidiary engine drive system, and vehicle subsidiary engine drive system is the described vehicle subsidiary engine of above-mentioned arbitrary embodiment drive system.Because above-mentioned subsidiary engine drive system has above-mentioned technique effect, the elec. vehicle with this subsidiary engine drive system also has identical technique effect, repeats no more herein.
Above a kind of elec. vehicle provided by the present invention and auxiliary machine driver thereof, subsidiary engine drive system all are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. elec. vehicle auxiliary machine driver, comprise brake power parts, power-assisted steering pump (13), it is characterized in that, also comprise dual-axle motor (11) and two power-transfer clutchs with two mouths, two mouths of described dual-axle motor (11) connect described brake power parts and described power-assisted steering pump (13) by a described power-transfer clutch respectively.
2. elec. vehicle auxiliary machine driver as claimed in claim 1, is characterized in that, described auxiliary machine driver also comprises vacuum booster pump (15), and described brake power parts are for driving the Air compressor (12) of described vacuum booster pump (15).
3. elec. vehicle auxiliary machine driver as claimed in claim 2, is characterized in that, two described power-transfer clutchs are magnetic clutch.
4. elec. vehicle auxiliary machine driver as claimed in claim 2, is characterized in that, two described power-transfer clutchs are hydraulic control clutch.
5. elec. vehicle auxiliary machine driver as described in claim 2-4 any one, is characterized in that, the rated speed of rotation of described Air compressor (12) and described power-assisted steering pump (13) equates.
6. elec. vehicle auxiliary machine driver as described in claim 2-4 any one, is characterized in that, the maximum torque of described dual-axle motor (11) is greater than the maximum torque sum of described Air compressor (12) and described power-assisted steering pump (13).
7. an elec. vehicle subsidiary engine drive system, is characterized in that, comprises elec. vehicle auxiliary machine driver as described in claim 1-6 any one; Also comprise the controller (17) that receives speed-slackening signal and turn sign, described controller (17) is controlled two described power-transfer clutchs closures or separates according to speed-slackening signal and turn sign.
8. elec. vehicle subsidiary engine drive system as claimed in claim 7, is characterized in that, described controller (17) is the entire car controller of elec. vehicle.
9. an elec. vehicle, comprise main drive system and vehicle subsidiary engine drive system, it is characterized in that, described vehicle subsidiary engine drive system is the described vehicle subsidiary engine of claim 7 or 8 drive system.
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| CN103895703A (en) * | 2014-04-02 | 2014-07-02 | 广东亿纬赛恩斯新能源系统有限公司 | Steering and braking combined device and vehicle steering and braking control method thereof |
| CN104786837A (en) * | 2015-04-17 | 2015-07-22 | 包头市北工机械有限公司 | Combined power system |
| CN105437958A (en) * | 2014-09-30 | 2016-03-30 | 包头市北工机械有限公司 | Energy-saving all-in-one machine for new energy vehicle |
| CN105438257A (en) * | 2015-11-13 | 2016-03-30 | 湖南南车时代电动汽车股份有限公司 | Electrical auxiliary system for hybrid power vehicle |
| CN106080761A (en) * | 2016-07-04 | 2016-11-09 | 玉林市璟晗新能源汽车有限责任公司 | A kind of air compressor and hydraulic steering pump integrated mechanism |
| CN106394530A (en) * | 2015-07-31 | 2017-02-15 | 比亚迪股份有限公司 | Vehicle braking and steering combined system |
| CN106394527A (en) * | 2015-07-31 | 2017-02-15 | 比亚迪股份有限公司 | Vehicle braking and steering combined system |
| CN107364352A (en) * | 2017-06-29 | 2017-11-21 | 江西博能上饶客车有限公司 | Electric automobile |
| CN108317133A (en) * | 2018-03-29 | 2018-07-24 | 安徽合力股份有限公司 | A kind of electri forklift double built-in spline pump motor control methods and its control system |
| CN108340758A (en) * | 2017-01-25 | 2018-07-31 | I.E.T.股份公司 | Integrated power-equipment for driving vehicle assisted system |
| CN111634182A (en) * | 2020-06-05 | 2020-09-08 | 广州慧巴科技有限公司 | Double-planet-row hybrid power system and control method thereof |
| CN114401873A (en) * | 2019-09-17 | 2022-04-26 | 法伊韦利传送器意大利有限公司 | Compressed air generating and air conditioning system for railway vehicles |
| WO2023044901A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electric vehicle driving system and electric vehicle |
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| CN105438257A (en) * | 2015-11-13 | 2016-03-30 | 湖南南车时代电动汽车股份有限公司 | Electrical auxiliary system for hybrid power vehicle |
| CN106080761A (en) * | 2016-07-04 | 2016-11-09 | 玉林市璟晗新能源汽车有限责任公司 | A kind of air compressor and hydraulic steering pump integrated mechanism |
| CN108340758A (en) * | 2017-01-25 | 2018-07-31 | I.E.T.股份公司 | Integrated power-equipment for driving vehicle assisted system |
| CN107364352A (en) * | 2017-06-29 | 2017-11-21 | 江西博能上饶客车有限公司 | Electric automobile |
| CN108317133A (en) * | 2018-03-29 | 2018-07-24 | 安徽合力股份有限公司 | A kind of electri forklift double built-in spline pump motor control methods and its control system |
| CN114401873A (en) * | 2019-09-17 | 2022-04-26 | 法伊韦利传送器意大利有限公司 | Compressed air generating and air conditioning system for railway vehicles |
| CN111634182A (en) * | 2020-06-05 | 2020-09-08 | 广州慧巴科技有限公司 | Double-planet-row hybrid power system and control method thereof |
| WO2023044901A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electric vehicle driving system and electric vehicle |
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