CN102136817A - Multi-motor synchronous/asynchronous driving system of electric vehicle - Google Patents
Multi-motor synchronous/asynchronous driving system of electric vehicle Download PDFInfo
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- CN102136817A CN102136817A CN201010100676XA CN201010100676A CN102136817A CN 102136817 A CN102136817 A CN 102136817A CN 201010100676X A CN201010100676X A CN 201010100676XA CN 201010100676 A CN201010100676 A CN 201010100676A CN 102136817 A CN102136817 A CN 102136817A
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Abstract
The invention provides a multi-motor synchronous/asynchronous driving system of an electric vehicle, which can reduce the cost of the system and output multiple mutually independent motor driving system loops. The synchronous/asynchronous driving system comprises a plurality of inverter bridges, and a direct-current bus, a pre-charging circuit, a supporting capacitor, a cooling system, a detection signal and a control power supply shared by the inverter bridges; and all the parts except the cooling system are electrically connected together, and the cooling system is mechanically connected. The outputs of all the motor inverter bridge driving loops are independent without influencing the work of one another, and even when one path or multiple paths of the loops do not work or fails temporarily, other loops can continue to work.
Description
Technical field
The present invention relates to the motor-driven field, particularly the many motor synchronous of electric automobile/asynchronous drive system.
Background technology
Employed motor is more and more on the present electric automobile, except high-power driving electric system, also can comprise in order to the Oil pump electrical machinery that drives oil pump, in order to the air pump motor that drives air pump, in order to the water pump that drives cooling system or fan electromotor etc. as the major impetus source.In the traditional electric automobile design, these motors generally all are independent designs, each drive motors all will have an independently electric machine control system (controller), because these drive systems all are to go up power taking from electric automobile main power source (for example battery pile), direct current is converted to interchange, in order to prevent fault, all to carry out work such as filtering and peak voltage absorption at direct-flow input end, these design works not only will divide other calculating and design, need to take different filter circuits simultaneously, thereby make the systematic comparison complexity, and overall cost is than higher.In addition, for the needs of controlling, all drive systems all need to gather the voltage or the current signal of DC loop, and this has just further increased system cost.
Summary of the invention
Technical problem to be solved by this invention provides a kind of can realize simplifying calculating and design process, reduces system cost, the many motor synchronous of the electric automobile/asynchronous drive system in the motor-driven loop that the output multichannel is separate.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system, comprise the shared precharging circuit of a plurality of inverter bridge and a plurality of inverter bridge, dc bus, support electric capacity, detection signal, cooling system and control power supply, above each several part except that cooling system is realized by mechanical connection all by being electrically connected realization.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system, the output of described inverter bridge loop is independent respectively, does not influence work mutually, even temporarily do not work or fault in wherein a road or a few road, its cocircuit can work on.
Description of drawings
Accompanying drawing is the schematic diagram of the many motor synchronous of a kind of electric automobile of the present invention/asynchronous drive system.
Embodiment
Below will be described in detail the specific embodiment of the present invention with reference to the accompanying drawings.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system comprise the shared dc bus of a plurality of inverter bridge and a plurality of inverter bridge, pre-charge circuit, support electric capacity, cooling system, detection signal and control power supply.
It is each motor inverter bridge drive circuitry that many motor synchronous of electric automobile of the present invention/asynchronous drive system is used shared dc bus, between dc bus and pre-charge circuit, support electric capacity, a plurality of inverter bridge by being electrically connected realization.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system is used shared pre-charge circuit.When the voltage of dc bus was higher than the voltage that supports the electric capacity two ends, relay disconnected, when detecting the voltage during that supports the electric capacity two ends in the scope that allows, and relay closes, pre-charge circuit stops charging.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system is used shared support electric capacity, supports output voltage, keeps output voltage stabilization, and the low-order harmonic electric current of filtering output voltage.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system uses shared cooling system that each inverter bridge drive system is cooled off, and cooling system and each inverter bridge realize by mechanical connection.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system uses shared detection signal device that DC power system is checked, all inverter bridge control circuits are all shared the signal of this detection signal device in the system, and detection signal device and each motor inverter bridge control circuit are by being electrically connected realization.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system is used shared control power supply, all motor inverter bridge all adopt this control power supply to power for the inverter bridge control circuit in the system, and control power supply and each motor inverter bridge are by being electrically connected realization.
The many motor synchronous of electric automobile of the present invention/asynchronous drive system can be exported two-way motor inverter bridge drive system loop at least, and these drive the loop can be logically independent fully, is independent of each other the corresponding electric system of drive; Simultaneously, all driving loops also can intercom mutually, coordinate control, thereby have strengthened the configuration flexibility of system.
Each drive motors loop of the many motor synchronous of electric automobile of the present invention/asynchronous drive system output is separate on machinery and circuit, mutually noninterfere, even a road (a few road) wherein damaged or suspended and use, can work as usual in other loops, unaffected.This configuration has strengthened the redundant performance of system, for can in time repairing of system provides technical support.
Each pairing electric system in drive motors loop of the many motor synchronous of electric automobile of the present invention/asynchronous drive system can be operated under the different mode of operations, work in the part motor powered like this, and part electric power generation when work, can realize the timely recycling of electric weight, be that electric energy that the part motor sends is just directly distributed to other electric systems in electronic work on dc bus, and do not need to feed back to storage battery, strengthened the feed utilance.
Claims (4)
1. the many motor synchronous of electric automobile/asynchronous drive system comprises the shared dc bus of a plurality of inverter bridge and a plurality of inverter bridge, pre-charge circuit, support electric capacity, cooling system, detection signal and control power supply.
Shared dc bus is each motor inverter bridge drive circuitry, dc bus and pre-charge circuit, supports between electric capacity, a plurality of inverter bridge by being electrically connected realization.
Shared pre-charge circuit, when the voltage of dc bus was higher than the voltage that supports the electric capacity two ends, relay disconnected, when detecting the voltage during that supports the electric capacity two ends in the scope that allows, relay closes, pre-charge circuit stops charging.
Shared support electric capacity supports output voltage, keeps output voltage stabilization, and the low-order harmonic electric current of filtering output voltage.
Shared cooling system cools off each inverter bridge drive system, and cooling system and each inverter bridge realize by mechanical connection.
Shared detection signal device is checked DC power system, and all inverter bridge control circuits are all shared the signal of this detection signal device in the system, and detection signal device and each motor inverter bridge control circuit are by being electrically connected realization.
Shared control power supply, all motor inverter bridge all adopt this control power supply to power for the inverter bridge control circuit in the system, and control power supply and each motor inverter bridge are by being electrically connected realization.
2. can export two-way motor inverter bridge drive system loop at least according to the many motor synchronous of the described electric automobile of claim 1/asynchronous drive system, these drive the loop can be logically independent fully, be independent of each other the corresponding electric system of drive; Simultaneously, all driving loops also can intercom mutually, coordinate control, thereby have strengthened the configuration flexibility of system.
3. separate on machinery and circuit according to each drive motors loop of the many motor synchronous of the described electric automobile of claim 1/asynchronous drive system output, mutually noninterfere, even a road (a few road) wherein damaged or suspended and use, can work as usual in other loops, unaffected.This configuration has strengthened the redundant performance of system, for can in time repairing of system provides technical support.
4. can be operated under the different mode of operations according to each pairing electric system in drive motors loop of the many motor synchronous of the described electric automobile of claim 1/asynchronous drive system, work in the part motor powered like this, and part electric power generation when work, can realize the timely recycling of electric weight, be that electric energy that the part motor sends is just directly distributed to other electric systems in electronic work on dc bus, and do not need to feed back to storage battery, strengthened the feed utilance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100676XA CN102136817A (en) | 2010-01-25 | 2010-01-25 | Multi-motor synchronous/asynchronous driving system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100676XA CN102136817A (en) | 2010-01-25 | 2010-01-25 | Multi-motor synchronous/asynchronous driving system of electric vehicle |
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| Publication Number | Publication Date |
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| CN102136817A true CN102136817A (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010100676XA Pending CN102136817A (en) | 2010-01-25 | 2010-01-25 | Multi-motor synchronous/asynchronous driving system of electric vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413671A (en) * | 2011-12-26 | 2012-04-11 | 天津清源电动车辆有限责任公司 | Water-cooled motor controller for high power density electric vehicle |
| CN102769418A (en) * | 2012-07-28 | 2012-11-07 | 中山大洋电机股份有限公司 | Centralized motor controller for controlling a plurality of motors |
| CN104865936A (en) * | 2015-03-31 | 2015-08-26 | 南通明诺机械有限公司 | Multi-drive coupling integrated control system |
| CN107861494A (en) * | 2017-10-24 | 2018-03-30 | 厦门金龙汽车新能源科技有限公司 | The real-time detection of multi_motor control device and Synchronization |
| CN111082710A (en) * | 2019-12-25 | 2020-04-28 | 深圳万讯自控股份有限公司 | Servo motor direct current bus carrier control topological structure and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954485A (en) * | 2005-03-09 | 2007-04-25 | 丰田自动车株式会社 | Load drive device, vehicle, and abnormality processing method in load drive device |
| CN101159425A (en) * | 2007-10-19 | 2008-04-09 | 王武 | Elevator staircase group frequency conversion drive united power supply energy-saving operation method and apparatus |
| CN101378928A (en) * | 2006-02-08 | 2009-03-04 | 丰田自动车株式会社 | Hybrid vehicle drive device |
| CN201298820Y (en) * | 2008-08-04 | 2009-08-26 | 上海电驱动有限公司 | Motor control system for pumping unit in oil field |
-
2010
- 2010-01-25 CN CN201010100676XA patent/CN102136817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1954485A (en) * | 2005-03-09 | 2007-04-25 | 丰田自动车株式会社 | Load drive device, vehicle, and abnormality processing method in load drive device |
| CN101378928A (en) * | 2006-02-08 | 2009-03-04 | 丰田自动车株式会社 | Hybrid vehicle drive device |
| CN101159425A (en) * | 2007-10-19 | 2008-04-09 | 王武 | Elevator staircase group frequency conversion drive united power supply energy-saving operation method and apparatus |
| CN201298820Y (en) * | 2008-08-04 | 2009-08-26 | 上海电驱动有限公司 | Motor control system for pumping unit in oil field |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413671A (en) * | 2011-12-26 | 2012-04-11 | 天津清源电动车辆有限责任公司 | Water-cooled motor controller for high power density electric vehicle |
| CN102769418A (en) * | 2012-07-28 | 2012-11-07 | 中山大洋电机股份有限公司 | Centralized motor controller for controlling a plurality of motors |
| CN102769418B (en) * | 2012-07-28 | 2014-12-17 | 中山大洋电机股份有限公司 | Centralized motor controller for controlling a plurality of motors |
| CN104865936A (en) * | 2015-03-31 | 2015-08-26 | 南通明诺机械有限公司 | Multi-drive coupling integrated control system |
| CN107861494A (en) * | 2017-10-24 | 2018-03-30 | 厦门金龙汽车新能源科技有限公司 | The real-time detection of multi_motor control device and Synchronization |
| CN107861494B (en) * | 2017-10-24 | 2019-07-09 | 厦门金龙汽车新能源科技有限公司 | The real-time detection and Synchronization of multi_motor control device |
| CN111082710A (en) * | 2019-12-25 | 2020-04-28 | 深圳万讯自控股份有限公司 | Servo motor direct current bus carrier control topological structure and method |
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Application publication date: 20110727 |