CN102673424B - Electronlmobil PCU light current electric power system - Google Patents
Electronlmobil PCU light current electric power system Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention relates to a kind of electronlmobil PCU light current electric power system, comprise storage battery, normal feed circuit and unusual feed circuit; Described storage battery through normal feed circuit be the singlechip minimum system circuit of VCU module, DI/DO element circuit and CAN communication interface circuit power, described storage battery through unusual feed circuit be only that the AI/AO element circuit of VCU module, electric machine controller module, the relay group of VCU module and the contactless switch group of high voltage power distribution module are powered when battery-driven car switch closes.The present invention by adopt normal feed circuit and very feed circuit provide normal power supply and unusual power supply two kinds of power supply modes to PCU, the partial circuit of work is needed to power time only standby to VCU module when battery-driven car switch disconnects, and then guarantee waking up of electronlmobil, also farthest stand-by power consumption is reduced, solve the problem of electronlmobil long-time storage, have great convenience for the user to use, promote the rigid index of electronlmobil, and environmental protection.
Description
Technical field
The present invention relates to electric vehicle engineering field, more particularly, relate to a kind of electronlmobil PCU light current electric power system.
Background technology
Current new-energy automobile technology proceeds to the commercialization stage by laboratory gradually, energy-conservation, miniaturization, economical, the lightweight developing direction become in the industry, power control system (PCU) is as its core component, require higher to its performance perameter, wherein the index of power consumption is exactly one of them.
Power control system (PCU) is the car load kernel component system of electronlmobil, be responsible for the multiple functions such as control, computing, signal conversion processes, trouble diagnosing, communication and driving, it is according to the intention of chaufeur and driving cycle, carry out rational power distribution in real time and coordinate the energy flow between each parts, to improve the dynamic property of car load, safety and high efficiency.At present, the light current power supply of PCU keeps power supply, because accumulator capacity is limited by 12V storage battery, when battery-driven car key is OFF, the electricity of simple dependence battery stores supports stand-by power consumption, and when accumulator electric-quantity exhausts, now other work of electronlmobil cannot normally be carried out.The light current power supply design of therefore current PCU, very easily when electronlmobil long-time storage, causes accumulator electric-quantity to exhaust because stand-by power consumption is comparatively large.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that existing electronlmobil PCU light current is powered as storage battery continued power makes stand-by power consumption large, provides a kind of electronlmobil PCU light current electric power system.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of electronlmobil PCU light current electric power system, described PCU at least comprises VCU module, electric machine controller module, DC/DC converter module and high voltage power distribution module; Described VCU module at least comprises singlechip minimum system circuit, DI/DO element circuit, CAN communication interface circuit, AI/AO element circuit and relay group; Described high voltage power distribution module has contactless switch group;
Described electronlmobil PCU light current electric power system comprises storage battery, normal feed circuit and unusual feed circuit; The input end of described normal feed circuit is connected with the mouth of described storage battery, and the mouth of described normal feed circuit is connected to the singlechip minimum system circuit of described VCU module, DI/DO element circuit and CAN communication interface circuit respectively; Described normal feed circuit are used for described battery tension being converted to operating voltage and export; The input end of described very feed circuit is connected with the mouth of described storage battery, and the mouth of described very feed circuit is connected to the AI/AO element circuit of described VCU module, described electric machine controller module, the relay group of described VCU module and the contactless switch group of described high voltage power distribution module respectively; Described very feed circuit are used for when battery-driven car switch conduction, described battery tension being converted to operating voltage and export, and turn off export when battery-driven car switch disconnects.
According in electronlmobil PCU light current electric power system of the present invention, described VCU module also comprises the burned download circuit of program with described singlechip minimum system circuit communication, and the mouth of described normal feed circuit is also connected to the burned download circuit of program of described VCU module.
According in electronlmobil PCU light current electric power system of the present invention, described high voltage power distribution module also has insulating monitoring module, and the mouth of described very feed circuit is also connected to described insulating monitoring module.
According in electronlmobil PCU light current electric power system of the present invention, described normal feed circuit comprise the first switching power source chip, and the mouth of described storage battery is converted to operating voltage through described first switching power source chip and exports power supply.
According in electronlmobil PCU light current electric power system of the present invention, described very feed circuit comprise second switch power supply chip, and the mouth of described storage battery is converted to operating voltage through described battery-driven car switch and described second switch power supply chip successively and exports power supply.
Implement electronlmobil PCU light current electric power system of the present invention, there is following beneficial effect: the present invention by adopt normal feed circuit and very feed circuit provide normal power supply and unusual power supply two kinds of power supply modes to PCU, the partial circuit of work is needed to power time only standby to VCU module when battery-driven car switch disconnects, and then guarantee waking up of electronlmobil, also farthest stand-by power consumption is reduced, solve the problem of electronlmobil automobile long-time storage, have great convenience for the user to use, promote the rigid index of electronlmobil, and environmental protection.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the dynamic assembly functional block diagram of the PCU that electronlmobil PCU light current electric power system according to the present invention is suitable for;
Fig. 2 is the dynamic assembly electric diagram of the PCU that electronlmobil PCU light current electric power system according to the present invention is suitable for;
Fig. 3 is the functional block diagram of VCU module in the PCU that is suitable for of electronlmobil PCU light current electric power system according to the present invention;
Fig. 4 is the circuit module figure of the preferred embodiment according to electronlmobil PCU light current electric power system of the present invention;
Fig. 5 is the circuit diagram of the preferred embodiment breaker in middle power supply chip according to electronlmobil PCU light current electric power system of the present invention;
Fig. 6 is the circuit diagram of CAN communication interface module in the preferred embodiment according to electronlmobil PCU light current electric power system of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.
This invention contemplates a kind of electronlmobil PCU light current electric power system, the mouth of storage battery is divided into two-way, normal feed circuit of leading up to keep continued power to the partial circuit of entire car controller in PCU (VCU) module, to ensure the normal charged arousal function of VCU module, such as when battery-driven car is standby, still some switch controlling signals signal as closed in battery-driven car switch can be received by DI/DO element circuit, or receive such as alerting signal by CAN communication interface circuit, ON shelves signal, charge switch signal etc., respond in time with the MCU waking VCU module up.Separately lead up to very feed circuit, when battery-driven car switch closes, in the remainder circuit of VCU module and PCU, other needs to carry out the circuit that light current powers and powers, and cuts off power supply when battery-driven car switch disconnects.Battery-driven car switch involved in the present invention refers to the break-make of the relay that battery-driven car key controls, key unlocking and the ON/OFF logic shutting corresponding relay respectively.
First the structure of the PCU that electronlmobil PCU light current electric power system of the present invention uses is introduced below.First, refer to Fig. 1 and Fig. 2, be respectively dynamic assembly functional block diagram and the dynamic assembly electric diagram of the PCU that electronlmobil PCU light current electric power system according to the present invention is suitable for.As depicted in figs. 1 and 2, PCU100 at least comprises VCU module 110, electric machine controller module 120, DC/DC converter module 130 and high voltage power distribution module 140.
Electronlmobil also has electrokinetic cell system 90, motor 80 and storage battery 210.Electrokinetic cell system 90 as the power source of battery-driven car, for car load provides electric power.
The transmission of high voltage power distribution module 140 primary responsibility Full Vehicle System dynamic power.Electrokinetic cell system 90 powers to electric machine controller module 120 by high voltage power distribution module 140, runs with drive motor 80.Meanwhile, electrokinetic cell system 90 is powered for DC/DC converter module 130 by high voltage power distribution module 140, and DC/DC converter module 130 is changed it and then charged into storage battery 210.As shown in Figure 2, electrokinetic cell system 90 can be divided into 3 tunnels after high voltage power distribution module 140, and the first via is that electric machine controller module 120 is powered, and then drive motor 80 runs.Second tunnel is that DC/DC converter module 130 is powered, and then charges for storage battery 210.3rd tunnel is external sys-tems, such as, power for a/c system 71, heater unit system 72, onboard charger 73 and non-onboard charger 74.High voltage power distribution module 140 can also monitor the insulation fault of whole high-pressure system, open circuit fault, earth fault and high voltage fault etc. at any time, is the critical function module ensureing car load equipment and personal safety.Such as, there is in high voltage power distribution module 140 insulating monitoring module 142, for carrying out insulating monitoring to PCU100, producing insulating monitoring signal to VCU module 110.
Electric machine controller module 120, mainly from the work order of CAN network reception from VCU module 110, performs corresponding control algorithm and carrys out drive motor and travel.Electric machine controller module 120 may further include high-power IGBT module, conv, DSP control chip and motor control algorithms etc.
DC/DC converter module 130 be mainly used in high tension supply to be converted to low potential source as 12V to the system parts of car load as 12V low pressure lead-acid storage battery 210 and other low pressure accessory equipment are powered.Consider the optimum management of energy, require that DC/DC converter module 130 possesses the adjustable closed loop control function of voltage.
VCU module 110 mainly receives demand information from chaufeur as battery-driven car switch, Das Gaspedal, brake pedal, gear information etc., realizes the control of car load operating mode.VCU module 110 can transmit control signal and realize the control of distribution to high voltage power distribution module 140, also can transmit control signal simultaneously and realize the charging control of storage battery 210 to DC/DC converter module 130.VCU module 110 can also control the contactless switch group 141 in high voltage power distribution module 140 by relay group 116, to control each contactless switch, realize conducting and disconnect controlling.In addition, VCU module 110 also according to car load feedback actual condition as the speed of a motor vehicle, braking, motor speed, and the situation of Full Vehicle System is as electrokinetic cell voltage, electric current, temperature and SOC value etc., carry out energy distribution adjustment according to the control policy matched in advance, be also responsible for trouble diagnosing and the management of car load.
Referring to Fig. 3, is the functional block diagram of VCU module in the PCU that electronlmobil PCU light current electric power system according to the present invention is suitable for.As shown in Figure 3, VCU module 110 at least comprises singlechip minimum system circuit 111 and the DI/DO element circuit 112 be attached thereto, CAN communication interface circuit 114 and AI/AO element circuit 113.In addition, relay group 116, DI/DO element circuit 112 is provided with in this VCU module 110 by relay group 116 fire switch control signal to the contactless switch group 141 in high voltage power distribution module 140.
DI/DO element circuit 112 for gathering external switch control signal to singlechip minimum system circuit 111, such as, from ON or the OFF signal etc. of battery-driven car switch.Meanwhile, DI/DO element circuit 112 also exports the switch controlling signal that singlechip minimum system circuit 111 produces, such as, give the contactless switch group 141 in aforementioned high voltage power distribution module 140.
AI/AO element circuit 113 is for gathering the terminal signals such as outside throttle/pedal/braking to singlechip minimum system circuit 111.Meanwhile, AI/AO element circuit 113 also exports the analog control signal of singlechip minimum system circuit 111 generation to each external parts.
Singlechip minimum system circuit 111 is the core of VCU module 110, comprises MCU power supply, reset chip and crystal oscillating circuit etc.The external switch control signal that singlechip minimum system circuit 111 can gather according to above-mentioned DI/DO element circuit 112, and the terminal signals such as outside throttle/pedal/braking that AI/AO element circuit 113 gathers, generation battery-driven car control signal realizes the control of car load operating mode.
VCU module 110 can also comprise the burned download circuit 115 of program, can realize the operation such as programming and renewal to singlechip minimum system circuit Program by this circuit.
Referring to Fig. 4, is the circuit module figure of the preferred embodiment of electronlmobil PCU light current electric power system according to the present invention.As shown in Figure 4, the electronlmobil PCU light current electric power system that this embodiment provides comprises storage battery 210, normal feed circuit 220 and unusual feed circuit 230.Such as, in the present invention, storage battery 210 positive pole can be powered to PCU through fuse box, is divided into often power supply and powers very much at this, and normal power supply is realized by above-mentioned normal feed circuit 220, and no matter it all keeps power supply at battery-driven car switch conduction or when closing.Power very much and to be realized by the break-make of key control relay, namely by battery-driven car switch conducting and closedly to decide.
The input end of normal feed circuit 220 is connected with the mouth of storage battery 210, the mouth of normal feed circuit 220 is connected to the singlechip minimum system circuit 111 of VCU module 110, DI/DO element circuit 112 and CAN communication interface circuit 114 respectively, and normal feed circuit 220 are for being that operating voltage exports as these need the maintenance alive circuit continued power when battery-driven car is standby by storage battery 210 voltage transitions.Normal feed circuit 220 in the present invention are only given by switching power source chip needs the partial circuit of the VCU module 100 worked when standby to power.When battery-driven car key is OFF, battery-driven car switch is off, MCU is in deep sleep state, but the singlechip minimum system circuit 111 of VCU module 100, DI/DO element circuit 112 and CAN communication interface circuit 114 still keep power supply, that is, some switch controlling signals can be received as battery-driven car switch closure signals by DI/DO element circuit 112, or receive such as alerting signal, ON shelves signal and charge switch signal etc. by CAN communication interface circuit, thus wake MCU work up.In addition, the burned download circuit of program 115 that the mouth of normal feed circuit 220 can also be connected to VCU module 100 provides normal power supply for it.
Very the input end of feed circuit 230 is connected with the mouth of storage battery 210, and very the mouth of feed circuit 230 is connected to the AI/AO element circuit 113 of VCU module 110, electric machine controller module 120, the relay group 116 of VCU module 110 and the contactless switch group 141 of high voltage power distribution module respectively.Very feed circuit are used for when battery-driven car switch conduction, battery tension being converted to operating voltage output, turn off export when battery-driven car switch disconnects.The drive plate that very feed circuit 230 are mainly electric machine controller module 120 is powered, to provide the operating voltage of light current circuit part.Very feed circuit 230 in the present invention by switching power source chip give not need in the partial circuit of the VCU module 100 worked when standby and PCU other to need to carry out circuit that light current powers is powered.And very feed circuit 230 are only powered when battery-driven car switch closes, cut off power supply when battery-driven car switch disconnects.In addition, the insulating monitoring module 142 that very mouth of feed circuit 230 can also be connected to high voltage power distribution module is powered for it provides very much, only when battery-driven car switch closes for it provides light current operating voltage.
Referring to Fig. 5, is the circuit diagram of the preferred embodiment breaker in middle power supply chip of electronlmobil PCU light current electric power system according to the present invention.Switching power source chip and peripheral circuit is included in normal feed circuit 220 in the present invention and very feed circuit 230.When specific implementation, normal feed circuit 220 can comprise the first switching power source chip, and the mouth of storage battery 210 is directly converted to 5V operating voltage by the first switching power source chip and exports power supply.Very feed circuit 230 can comprise second switch power supply chip, and the mouth of storage battery 210 first through battery-driven car switch, then is converted to 5V operating voltage output power supply by second switch power supply chip.Above-mentioned first switching power source chip and second switch power supply chip all can adopt switching power source chip U1 as shown in Figure 5 and peripheral circuit.Fig. 5 breaker in middle power supply chip U1 preferably adopts low-power chip, and such as model is the chip of TPS54140DGQ.Fig. 5 is the example connection diagram of this chip.The voltage input pin VIN of switching power source chip U1 exports with the 12V of storage battery 210 and is connected, and the output pin OUT of circuit exports 5V operating voltage.
Referring to Fig. 6, is the circuit diagram of CAN communication interface module in the preferred embodiment of electronlmobil PCU light current electric power system according to the present invention.As shown in Figure 6, CAN communication interface module 114 adopts low-power chip U2 to realize equally, and such as model is the chip of TJA1040.TJA1040 is adopted to provide a special standby mode in the present embodiment, current draw reduces to minimum in this mode, maximum <15 μ A, special low-power consumption receptor ensure that the function of being carried out Remote Wake Up by bus, in standby mode, TJA1040 transmitter is regardless of the signal on pin TXD, complete forbidden energy.Such TJA1040 provides mute function to tackle BabblingIdiot node, and TJA1040 under this scheme bus moves pin GND to, and therefore the current draw of TJA1040 under low-power consumption working environment can be very low.
The chip that comprehensive above-described embodiment adopts obtains the power consumption actual measurement of electronlmobil PCU light current electric power system of the present invention when standby, switching power source chip U1 and TPS54140DGQ is 2mA, singlechip minimum system circuit is 4mA, DI/DO element circuit 112 is tens microamperes and can ignores, and CAN communication interface circuit and TJA1040 are: maximum <15 μ A.Therefore the total power consumption <6mA (12V) of acquisition is calculated.Its stand-by power consumption of conventional electric automobile <50mA, and the stand-by power consumption of electronlmobil is reduced to <6mA (12V) by Power Management Design provided by the invention.Therefore, the invention solves the problem of electronlmobil automobile long-time storage, have great convenience for the user to use, promote the rigid index of electronlmobil, and environmental protection.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the scope of the invention, can carry out various change and equivalent replacement.In addition, for adapting to specific occasion or the material of the technology of the present invention, can many amendments be carried out to the present invention and not depart from its protection domain.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.
Claims (5)
1. an electronlmobil PCU light current electric power system, described PCU at least comprises VCU module, electric machine controller module, DC/DC converter module and high voltage power distribution module; Described VCU module at least comprises singlechip minimum system circuit, DI/DO element circuit, CAN communication interface circuit, AI/AO element circuit and relay group; Described high voltage power distribution module has contactless switch group;
It is characterized in that, described electronlmobil PCU light current electric power system comprises storage battery, normal feed circuit and unusual feed circuit;
The input end of described normal feed circuit is connected with the mouth of described storage battery, and the mouth of described normal feed circuit is connected to the singlechip minimum system circuit of described VCU module, DI/DO element circuit and CAN communication interface circuit respectively; Described normal feed circuit are used for described battery tension being converted to operating voltage and export;
The input end of described very feed circuit is connected with the mouth of described storage battery, and the mouth of described very feed circuit is connected to the AI/AO element circuit of described VCU module, described electric machine controller module, the relay group of described VCU module and the contactless switch group of described high voltage power distribution module respectively; Described very feed circuit are used for when battery-driven car switch conduction, described battery tension being converted to operating voltage and export, and turn off export when battery-driven car switch disconnects.
2. electronlmobil PCU light current electric power system according to claim 1, it is characterized in that, described VCU module also comprises the burned download circuit of program with described singlechip minimum system circuit communication, and the mouth of described normal feed circuit is also connected to the burned download circuit of program of described VCU module.
3. electronlmobil PCU light current electric power system according to claim 1, it is characterized in that, described high voltage power distribution module also has insulating monitoring module, and the mouth of described very feed circuit is also connected to described insulating monitoring module.
4. electronlmobil PCU light current electric power system according to claim 1, it is characterized in that, described normal feed circuit comprise the first switching power source chip, and the mouth of described storage battery is converted to operating voltage through described first switching power source chip and exports power supply.
5. electronlmobil PCU light current electric power system according to claim 4, it is characterized in that, described very feed circuit comprise second switch power supply chip, and the mouth of described storage battery is converted to operating voltage through described battery-driven car switch and described second switch power supply chip successively and exports power supply.
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| CN201210193776.0A CN102673424B (en) | 2012-06-13 | 2012-06-13 | Electronlmobil PCU light current electric power system |
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| CN201210193776.0A CN102673424B (en) | 2012-06-13 | 2012-06-13 | Electronlmobil PCU light current electric power system |
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| CN102673424B true CN102673424B (en) | 2016-03-23 |
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Families Citing this family (10)
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| US9296300B2 (en) * | 2012-04-13 | 2016-03-29 | General Electric Company | Method and system for powering a vehicle |
| CN102929271B (en) * | 2012-10-31 | 2016-04-20 | 苏州汇川技术有限公司 | Electric automobile motive power control system assembly EAM system and method |
| CN104723892A (en) * | 2013-12-20 | 2015-06-24 | 北京基业达电气有限公司 | Electric drive system of electric vehicle |
| CN104691350B (en) * | 2015-02-16 | 2017-01-04 | 北京新能源汽车股份有限公司 | Discharging device for residual electricity of high-voltage component of electric automobile |
| CN104691349B (en) * | 2015-02-16 | 2016-11-30 | 北京新能源汽车股份有限公司 | Discharging device for residual electricity of high-voltage component of electric automobile |
| CN109391136B (en) * | 2017-08-02 | 2023-11-17 | 宇通客车股份有限公司 | DC/DC converter awakening system, vehicle low-voltage power supply system and vehicle |
| CN107640030B (en) * | 2017-08-07 | 2020-02-04 | 北京长城华冠汽车科技股份有限公司 | Method and device for reducing capacity of low-voltage storage battery of pure electric vehicle |
| CN109017314B (en) * | 2018-08-21 | 2022-04-26 | 阳光电源（上海）有限公司 | Power management system based on motor controller and control method |
| CN113890362B (en) * | 2020-07-04 | 2024-03-26 | 宁德时代新能源科技股份有限公司 | Auxiliary source control circuit, DC/DC converter, whole vehicle control system and method |
| CN112721636B (en) * | 2021-01-20 | 2022-06-10 | 中通客车股份有限公司 | Electric motor coach power supply system, electric motor coach and method |
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Effective date of registration: 20210512 Address after: 215000 52 tianedang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: SUZHOU HUICHUAN UNITED POWER SYSTEM Co.,Ltd. Address before: 215000 north side of Youxiang Road, Wangshan Industrial Park, Wuzhong Economic Development Zone, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU INOVANCE TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN INOVANCE TECHNOLOGY Co.,Ltd. |
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Address after: 215000 52 tianedang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Huichuan United Power System Co.,Ltd. Address before: 215000 52 tianedang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU HUICHUAN UNITED POWER SYSTEM Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |