CN102501776A - Composite power energy management prediction control system of pure-electric vehicle - Google Patents

Composite power energy management prediction control system of pure-electric vehicle Download PDF

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CN102501776A
CN102501776A CN 201110332811 CN201110332811A CN102501776A CN 102501776 A CN102501776 A CN 102501776A CN 201110332811 CN201110332811 CN 201110332811 CN 201110332811 A CN201110332811 A CN 201110332811A CN 102501776 A CN102501776 A CN 102501776A
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system
control
power
energy
motor
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CN 201110332811
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CN102501776B (en )
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曹秉刚
李复活
李红宇
邹忠月
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三门峡速达交通节能科技有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7005Batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage for electromobility
    • Y02T10/7022Capacitors, supercapacitors or ultracapacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • Y02T10/7208Electric power conversion within the vehicle
    • Y02T10/7216DC to DC power conversion
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

The invention discloses a composite power energy management prediction control system of a pure-electric vehicle. The system comprises a motor, a power storage battery and a super capacitor, wherein the power storage battery and the super capacitor are connected with a motor drive control device through a bidirectional DC-DC (direct current) converter respectively; the motor drive control device is connected with the motor; and the system also comprises a microprocessor control system and a vehicular navigation system, a switch pedal potentiometer, a brake pedal potentiometer, a motor detection unit, a power storage battery energy management system and a super capacitor energy management system connected with the microprocessor control system. The system disclosed by the invention can make full use of energy resources, improve energy recovery, increase the once-charge travel distance of the electric vehicle, protect the storage battery, prolong the service life of the storage battery and enhance the power performance of the whole electric vehicle.

Description

纯电动汽车复合电源能量管理预测控制系统 Composite electric vehicle power control system of forecasting energy management

技术领域 FIELD

[0001] 本发明属于纯电动汽车驱动与再生制动控制技术领域,具体涉及一种纯电动汽车复合电源能量管理预测控制系统。 [0001] The present invention pertains to a pure electric vehicle drive control and regenerative braking, and in particular relates to a pure electric vehicle composite predictive power energy management control systems.

背景技术 Background technique

[0002] 随着能源危机和环境污染的日益严重,电动汽车由于其节能、环保、能量转换效率高等优点,得到了产业界的高度重视和政府部门的大力扶持。 [0002] With the increasingly serious energy crisis and environmental pollution, the electric vehicle due to its energy-saving, environmental protection, energy conversion efficiency advantages, has been the strong support and government attach great importance to the industry. 目前,制约电动汽车发展的一个重要因素是其续驶里程短,如何提高驱动过程中的能量利用效率和刹车制动能量回收效率具有重大的意义。 Currently, an important factor restricting the development of electric vehicles is its short driving range, how to improve energy efficiency in the process of driving and braking energy recovery efficiency is of great significance.

[0003] 目前的电动汽车大多采用单一能源结构,在电动汽车在驱动过程中频繁加速,起步和爬坡是,瞬间放电电流过大,严重影响了动力蓄电池组的能量利用效率和使用寿命,而且导致车辆的动力性能受到了制约,在城市工况下,频繁的刹车制动,电机再生制动产生的充电电流波动幅度很大,会削减电池组的使用寿命,而且回收的能量有限,造成能量的浪费。 [0003] Most current electric vehicles use a single energy structure, frequent acceleration during driving an electric vehicle, and start climbing, the instantaneous discharge current is too large, a serious impact on energy efficiency and lifetime of the battery power, and leading to dynamic performance of the vehicle is constrained in urban conditions, the charging current fluctuations frequent braking, regenerative braking of the motor is large, it would reduce the service life of the battery pack, and limited energy recovered, resulting in energy waste. 通过将高比能量的动力蓄电池和高比功率的超级电容结合到一起,明显提高了电动汽车系统性能。 By combining super capacitor battery powered high specific energy and high specific power together electric vehicles significantly improved system performance. 但目前动力蓄电池和超级电容组成的复合电源系统采用简单的并联结构为电机提供能量,没有对蓄电池和超级电容之间的能量进行合理的管理分配,导致没有最大化的整体能量利用和制动能量回收,而且控制精度不高。 But the power battery and supercapacitor hybrid power system consisting of a simple parallel arrangement to provide energy for the motor, there is no reasonable management of the energy distribution between the battery and the super capacitor, resulting in no energy utilization and maximize the overall braking energy recovered, and the control accuracy is not high.

发明内容 SUMMARY

[0004] 本发明的目的在于提供一种纯电动汽车复合电源能量管理预测控制系统,解决现有技术中复合电源能量管理控制不完善,能量利用效率和制动能量回收效率低的问题,提高电动汽车一次充电行驶里程,能够充分利用能源,增加能量回收,保护蓄电池,延长蓄电池使用寿命,提高电动汽车整车动力性能。 [0004] The object of the present invention is to provide an electric vehicle energy management composite predictive power control system, to solve the prior art composite power imperfect energy management control, low energy efficiency and energy recovery efficiency of the brake, improved electric automobile mileage on a single charge, can make full use of energy, increase energy recovery, protect the battery, extend battery life and improve the electric vehicle power performance.

[0005] 为了达到上述目的,本发明采用的技术方案是: [0005] To achieve the above object, the technical solution adopted by the invention are:

一种纯电动汽车复合电源能量管理预测控制系统,包括电机、动力蓄电池组和超级电容,动力蓄电池组和超级电容分别经双向DC-DC变换器与电机驱动控制装置相连,电机驱动控制装置连接电机,其中,还包括微处理器控制系统,以及与微处理器控制系统相连接的车载导航系统、电门踏板电位器、刹车踏板电位器、电机检测单元、动力蓄电池能量管理系统和超级电容能量管理系统。 A pure electric vehicle composite predictive power energy management control system includes a motor, a power battery and a super capacitor, super-capacitor and the power battery are connected via a bidirectional DC-DC converter and the motor drive control device, a motor connected to a motor drive control means wherein, further comprising a microprocessor control system, and a car navigation system and a control system connected to the microprocessor, the potentiometer switches the pedal, the brake pedal potentiometer, detecting the motor unit, the energy management system and a battery power ultracapacitor energy management system.

进一步,所述车载导航系统(GPS/GIS)包括全球定位系统(GPS,Global Positioning System)及地理信息系统(GIS,Geographic Information System),能够提供路况(道路行驶工况)信息包括汽车行驶在该路段上的平均车速、加速度、道路坡度、交通流量、交通信号灯、路面车速限制等信息。 Further, the in-vehicle navigation system (GPS / GIS) includes a global positioning system (GPS, Global Positioning System) and geographic information systems (GIS, Geographic Information System), to provide road (road conditions) information included in the cars the average speed on the road, acceleration, road grade, traffic, traffic lights, road speed limits and other information.

[0006] 进一步,所述动力蓄电池组为铅酸蓄电池、锂离子电池或镍氢蓄电池。 [0006] Further, the power battery is lead acid battery, a lithium ion battery or a nickel hydrogen storage battery.

[0007] 进一步,所述电机采用永磁无刷电机或交流异步电机或永磁同步电机或开关磁阻电机。 [0007] Further, a motor with permanent magnet brushless motor or an AC induction motor or permanent magnet synchronous motor or a switched reluctance motor. [0008] 进一步,所述电机检测单元包括分别对电机的转矩、速度、电流信号进行采集的转矩传感器、速度传感器和电流传感器。 [0008] Further, the detecting unit comprises a motor torque, speed, motor current signal acquisition torque sensor, a speed sensor and a current sensor.

[0009] 进一步,所述电门踏板电位器和刹车踏板电位器包括角速度传感器和角位移传感 [0009] Further, the potentiometer switches pedal and a brake pedal and the angular velocity sensor comprises a potentiometer angular displacement sensor

ο ο

[0010] 进一步,所述微处理器控制系统电路板上设置有微处理器,与微处理器连接有信号滤波电路,光电隔离器件。 [0010] Further, the microprocessor control circuit board is provided with a microprocessor system, the microprocessor is connected to the signal filter circuit, optical isolation devices.

[0011] 进一步,所述双向DC-DC变换器包括两个功率开关管组成半桥结构和一个电感, 电感的一端连接在两个功率开关管的连接点上。 [0011] Further, the bidirectional DC-DC converter comprising two power switches and a half-bridge consisting of the inductance, the inductance is connected to one end of the connecting point of the two power switches.

[0012] 本发明的有益效果为: [0012] Advantageous effects of the present invention are:

本发明利用车载导航系统对未来一定时间内汽车道路行驶工况信息进行预测研究,获得路况信息后加以识别,结合系统各单元的检测信息,采用智能能量管理控制策略对能量进行管理分配。 The present invention utilizes a car navigation system for some time to road conditions automobiles prediction of information, the traffic information is to be identified, with each unit detection information system that uses intelligent energy management control strategy for the management of the energy distribution. 本发明改善了纯电动汽车的启动、加速和爬坡的动力性能,提高了驱动过程中的能量利用效率,还可以通过预测对能量进行合理管理分配,大大提高刹车制动能量回收效率,延长了电动汽车的续驶里程,同时可以避免动力蓄电池大电流充放电,提高动力蓄电池的使用寿命,并且可提高制动力矩,改善制动系统的可靠性和稳定性。 The present invention improves the startup pure electric vehicles, acceleration and climbing power performance, improved energy efficiency during the driving, the management can also be reasonably predicted by the energy distribution, greatly improving braking energy recovery efficiency and prolong driving range of electric vehicles, the battery power and avoid large current charge and discharge, to improve the life of the battery power, and can improve braking torque, improve the reliability and stability of the brake system.

[0013] 本发明借助车载导航系统(GPS/GIS)获取未来一段道路上的道路行驶工况,对路况信息进行识别预测研究,运用智能能量管理控制策略对动力蓄电池和超级电容组成的复合电源系统进行能量管理分配,可以提高能量的利用效率和制动能量回收效率。 [0013] The present invention by means of in-vehicle navigation system (GPS / GIS) to obtain road conditions on the stretch of road in the future, forecasting identification of traffic information, the use of intelligent energy management control strategy for power batteries and super capacitors composite power supply system energy distribution management can improve braking efficiency and energy recovery efficiency of the energy. 通过合理能量管理分配可以改善纯电动汽车的启动、加速和爬坡的动力性能,提高驱动过程中的能量利用效率,还可以提高刹车制动能量回收效率,延长电动汽车的续驶里程,同时可以避免动力蓄电池大电流充放电,提高动力蓄电池的使用寿命,并且可提高制动力矩,改善制动系统的可靠性和稳定性。 Energy management can be improved through the rational allocation launch pure electric vehicle, acceleration and climbing power performance, improve energy efficiency during driving, can also improve braking energy recovery efficiency, extend the driving range of electric vehicles, and can avoid large current charge and discharge power of the battery, improve the life of the battery power, and can improve braking torque, improve the reliability and stability of the brake system. 同时通过统一的信号处理控制,控制系统控制更加精确和安全。 At the same time through a unified control signal processing, control systems more precise control and security.

附图说明 BRIEF DESCRIPTION

[0014] 图1为本发明的系统结构示意图。 [0014] FIG. 1 is a schematic structural diagram of the invention system. 具体实施方式 detailed description

[0015] 以下结合附图对本发明作进一步的详细描述: [0015] conjunction with the drawings of the present invention will be further described in detail:

参见图1,本发明包括电机1、动力蓄电池组4和超级电容6,动力蓄电池组4和超级电容6分别经双向DC-DC变换器5与电机驱动控制装置2相连,电机驱动控制装置2连接电机,还包括DPS微处理器3,以及与DPS微处理器3相连接的车载导航系统11、电门踏板电位器10、刹车踏板电位器9、电机检测单元7、动力蓄电池能量管理系统12和超级电容能量管理系统8。 Referring to Figure 1, the present invention includes a motor 1, a power group 4 and a super capacitor battery 6, the power battery 4 and the super capacitor 6 are connected via a bidirectional DC-DC converter 5 and the motor drive control device 2, a motor drive control device 2 motor, the microprocessor 3 further comprising DPS, DPS and the car navigation system 3 connected to the microprocessor 11, the potentiometer switches the pedal 10, the brake pedal potentiometer 9, the motor unit 7 is detected, the battery power and the energy management system 12 super capacitor energy management system 8.

[0016] 车载导航系统11对未来一段路况(道路行驶工况)信息包括汽车行驶在该路段上的平均车速、加速度、道路坡度、交通流量、交通信号灯、路面车速限制等信息进行采集, 并将数据发送给DPS微处理器3。 [0016] car navigation system 11 for some future road (road conditions) information, including average speed of cars traveling on the road, acceleration, road grade, traffic, traffic lights, road speed limits and other information collection, and DPS 3 data is sent to the microprocessor.

[0017] 动力蓄电池能量管理系统12和超级电容能量管理系统8对蓄电池和超级电容的电压进行采集,利用电流传感器对充放电电流进行采集,采用热敏电阻,温度传感器对温度进行采集,以及对其荷电状态进行估算,然后将采集的数据发送给DPS微处理器3。 [0017] The energy management system of the battery power and the super capacitor 12 for energy management system 8 and the voltage of the super capacitor battery collection, using a current sensor on the charging and discharging current collection, using a thermistor, a temperature sensor for temperature collection, as well as data which estimate the state of charge, and then send the collected microprocessor 3 to DPS. [0018] DSP微处理器3对传送过来的蓄电池和超级电容信号,电门踏板信号,刹车踏板信号,电机采集的信号以及车载导航系统采集的路况信息进行滤波处理,然后经过DSP微处理器3识别预测分析,结合能量管理控制策略,发出能量比例分配信号,经过光电隔离发送给电机驱动控制装置2。 [0018] Traffic signal information acquisition and car navigation systems DSP microprocessor transmitted from the three pairs of batteries and super-capacitor signals, switches pedal signal, a brake pedal signal, the motor acquisition filtering process, and then through the DSP microprocessor 3 identify the predictive analysis, the binding energy management control strategy, the proportion of energy emitted allocation signal transmitted to the motor drive control apparatus 2 through the optical isolator.

[0019] 两个双向DC-DC变换器5的结构相同,包括两个功率开关管组成的半桥结构和一个电感,电感的一端连接在两个功率开关管的连接点上,通过电机驱动控制装置2产生的PWM脉冲控制信号进行控制。 [0019] The same two bidirectional DC-DC converter 5 in the structure, the structure comprising a half-bridge and an inductor consisting of two power switches, is connected to one end of the inductance at the connection point of the two power switch tube, controlled by a motor drive PWM pulse control signal generating means 2 is controlled.

[0020] 电机驱动控制装置2,根据接收到的DPS微处理器3控制信号,经过算法计算得到相应的PWM占空比,对两个双向DC-DC变换器5进行控制。 [0020] The motor drive control apparatus 2, based on the received control signal DPS microprocessor 3, after calculation algorithm gives the corresponding PWM duty cycle, two bidirectional DC-DC converter 5 is controlled.

[0021] 本发明的工作原理为: [0021] The working principle of the present invention are:

从功能要求来说,需要实现车辆的驱动和制动能量回收控制。 From the functional requirements, the need to achieve a vehicle drive control and regenerative braking. 复合电源系统中超级电容属于辅助电源,它起到削峰填谷的作用。 Composite super capacitor power supply system belongs to the auxiliary power supply, which functions as a load shifting. 如图1所示,车辆在行驶过程中,DPS微处理器3接收车载导航系统11采集未来一段道路行驶工况信息,动力蓄电池组4和超级电容6的荷电信息,电门踏板或刹车踏板电位信息以及电机检测单元7检测的信息,经过滤波处理, DSP微处理器3对信息进行识别预测分析,运用能量控制策略,调整动力蓄电池组4充放电和超级电容6的充放电比例,输出控制信号经过光电隔离处理,发送给电机驱动控制装置2,进一步控制两个双向DC-DC变换器5中的功率开关管的导通和截止,进而控制动力蓄电池和超级电容的能量管理,该系统是一套闭环控制系统。 As shown, the vehicle during running, DPS the microprocessor 3 receives a vehicle navigation system 11 for some road acquisition condition information, power information of the battery pack charge super capacitor 4 and 6, the pedal or the brake pedal switches potential, and information detected by the motor detecting means 7, after filtering processing, DSP microcomputer 3 recognizes the information prediction analysis using energy control strategy that adjusts the ratio of the charge-discharge power battery 4 and the charge and discharge of supercapacitor 6, the output control signal through the optical isolation, and transmitted to the motor drive control apparatus 2 further controls the turning on and off two bidirectional DC-DC converter of the power switch 5, thereby controlling the power of the battery and supercapacitor energy management, the system is a closed loop control system.

Claims (8)

  1. 1. 一种纯电动汽车复合电源能量管理预测控制系统,包括电机(1)、动力蓄电池组(4) 和超级电容(6),动力蓄电池组(4)和超级电容(6)分别经双向DC-DC变换器(5)与电机驱动控制装置(2)相连,电机驱动控制装置(2)连接电机,其特征在于:还包括微处理器控制系统(3),以及与微处理器控制系统(3)相连接的车载导航系统(11)、电门踏板电位器(10)、刹车踏板电位器(9)、电机检测单元(7)、动力蓄电池能量管理系统(12)和超级电容能量管理系统(8)。 An electric vehicle power complex predictive energy management control system comprising a motor (1), the power battery (4) and a super capacitor (6), the power battery (4) and a super capacitor (6) are bi-DC -DC converter (5) and the motor drive control means (2) connected to the motor drive control means (2) connected to the motor, characterized by: further comprising a microprocessor control system (3), and a microprocessor control system ( a car navigation system (11) 3) is connected, the potentiometer switches the pedal (10), a brake pedal potentiometers (9), the motor detecting means (7), the power battery energy management system (12) and the super capacitor energy management system (8).
  2. 2.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述车载导航系统(11)包括全球定位系统和地理信息系统。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: the in-vehicle navigation system (11) comprises a global positioning system and a geographical information system.
  3. 3.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述动力蓄电池组(4)为铅酸蓄电池、锂离子电池或镍氢蓄电池。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: the power battery (4) for the lead-acid battery, a lithium ion battery or a nickel hydrogen storage battery.
  4. 4.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述电机采用永磁无刷电机或交流异步电机或永磁同步电机或开关磁阻电机。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: said motor is a permanent magnet brushless motors or induction motors or permanent magnet synchronous AC motor or a switched reluctance motor .
  5. 5.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述电机检测单元(7)包括分别对电机(1)的转矩、速度、电流信号进行采集的转矩传感器、速度传感器和电流传感器。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: said motor detecting means (7) comprises a torque motor respectively (1), the speed, the current signal acquisition of the torque sensor, a speed sensor and a current sensor.
  6. 6.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述电门踏板电位器(10)和刹车踏板电位器(9)包括角速度传感器和角位移传感ο A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: said switches pedal potentiometer (10) and a brake pedal potentiometers (9) includes an angular velocity sensor and the angle displacement sensing ο
  7. 7.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述微处理器控制系统(3)电路板上设置有微处理器,与微处理器连接有信号滤波电路,光电隔离器件。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, wherein: said microprocessor control system (3) is provided with a circuit board, a microprocessor, and the microprocessor a filter circuit connected to the signal, optical isolation devices.
  8. 8.根据权利要求1中所述的一种纯电动汽车复合电源能量管理预测控制系统,其特征在于:所述双向DC-DC变换器(5)包括两个功率开关管组成半桥结构和一个电感,电感的一端连接在两个功率开关管的连接点上。 A pure electric vehicle according to claim 1 in the composite predictive power energy management control system as claimed in claim, characterized in that: said bidirectional DC-DC converter (5) comprises two half-bridge power switch and a composition inductance, the inductor having one end connected to a connection point of the two power switches.
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