CN102147336A - Monitoring system for electric vehicle regenerative braking and energy system comprehensive experimental device - Google Patents
Monitoring system for electric vehicle regenerative braking and energy system comprehensive experimental device Download PDFInfo
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- CN102147336A CN102147336A CN 201110005045 CN201110005045A CN102147336A CN 102147336 A CN102147336 A CN 102147336A CN 201110005045 CN201110005045 CN 201110005045 CN 201110005045 A CN201110005045 A CN 201110005045A CN 102147336 A CN102147336 A CN 102147336A
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Abstract
The invention relates to a monitoring system for an electric vehicle regenerative braking and energy system comprehensive experimental device, which comprises a microprocessor unit, a storage battery bank, a super capacitor bank, a voltage sensor, a current sensor, a temperature sensor, a rotation speed and torque sensor, a motor, a motor controller, a magnetic powder brake, a tension controller, external storage equipment, a touch display, a filter circuit, an acceleration pedal module, a brake pedal module and an acousto-optic alarm circuit. The monitoring system provided by the invention is used for detecting various operating parameters of the electric vehicle regenerative braking and energy system comprehensive experimental device, carrying out analysis and calculation on the detected data, and controlling the electric vehicle regenerative braking and energy system comprehensive experimental device according to an analysis result.
Description
Technical field
The present invention relates to a kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system.Specifically, with regard to relating to the parameters of electric vehicle regenerative braking and the operation of energy resource system comprehensive experimental device is detected, and the data that detect are carried out analytical calculation, according to analysis result electric vehicle regenerative braking and energy resource system comprehensive experimental device are controlled again.
Background technology
Along with the shortage of the serious day by day and petroleum resources of orthodox car exhaust emissions problem, the trend that electric vehicle replaces traditional fuel combustion vehicle is more and more obvious.One big factor of restriction electric vehicle development is exactly a battery, but with the electric vehicle of traditional accumulator as power, is subjected to that the accumulator specific power is little, operating temperature range is little, discharges and recharges the life-span and factor such as lack and restrict, and is difficult to satisfy the large market needs.Super capacitor have charging rate fast, recycle the life-span long, large current discharging capability is superpower, the energy conversion efficiency advantages of higher, therefore, super capacitor is known as " capacitor batteries " again.Adopt super capacitor and accumulator to unite for electric vehicle provides power and can learn from other's strong points to offset one's weaknesses, performance strong point separately solves the difficult situation that traditional single accumulator provides power.Simultaneously, because automobile brakes frequently in the city, the kinetic energy of automobile will change into thermal loss during brake, has reduced rate of energy.Regenerative braking also claims regenerative braking, is the braking technology of a kind of use on automobile, when braking the kinetic energy of vehicle is changed and is stored, and improves the utilization ratio of energy.
The key factor of restriction battery-capacitance hybrid power electric motor car development is exactly the data monitoring system of battery, electric capacity and car load, want the high efficiency power source that utilizes electric vehicle, just must solve the accurate Calculation of battery, electric capacity dump energy, on this basis, could coordinate work relationship between battery, the electric capacity comparatively accurately.Because the capacity ratio energy is low, the accumulator specific power is low, and the parameter matching between each parts is higher, interaction between the subsystem and influence are complicated, at present, and the data monitoring system of also perfect without comparison regenerative braking electric vehicle.
Summary of the invention
The objective of the invention is by a kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system are provided,, make it have characteristics such as dependable performance, control intelligence to overcome the deficiency of above-mentioned background technology.
The present invention adopts following technological means to realize:
A kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system comprise: microprocessor unit MCU, battery pack, super capacitor group, voltage sensor, current sensor, temperature sensor, torque and speed sensors, motor, electric machine controller, magnetic powder brake, tension controller, External memory equipment, touch display, filtering circuit, accelerator pedal module, brake pedal module and sound light alarming circuit.
The monitoring flow process of a kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system is: voltage sensor, temperature sensor are gathered voltage, the temperature signal of each battery in the battery pack respectively, current sensor is gathered the total current of battery pack, the signal that collects respectively after filtration wave circuit be delivered to microprocessor unit MCU; Voltage sensor, current sensor, temperature sensor are gathered voltage, electric current, the temperature signal of super capacitor group respectively, the signal that collects respectively after filtration wave circuit be delivered to microprocessor unit MCU; Torque and speed sensors is gathered rotating speed of motor, dtc signal, and rotating speed, the dtc signal that collects is delivered to microprocessor unit MCU; Microprocessor unit MCU is sent to touch display with voltage, electric current, temperature, rotating speed, the dtc signal that collects and shows; Microprocessor unit MCU is sent to voltage, electric current, temperature, rotating speed, the dtc signal that collects External memory equipment and stores; After voltage, electric current, temperature signal that microprocessor unit MCU collects exceeded normal range, sound light alarming circuit sends alarm sound and warning light is reported to the police;
The control flow of a kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system is: brake pedal module output voltage V 1 is to microprocessor unit MCU, and microprocessor unit MCU is according to the value control electric machine controller of V1; Electric machine controller is according to the output control motor required time of stall of microprocessor unit MCU; There is proportional relation in the required time of V1 and motor stall; Accelerator pedal module output voltage V 2 is to microprocessor unit MCU, and microprocessor unit MCU is according to the control signal of V2 output PWM, and this control signal is controlled electric machine controller; The output voltage V 3 control motor speeds of electric machine controller; Wherein there are linear relationship in V3, V2, and there are linear relationship in rotating speed of motor and V2.
Be provided with the brake pedal module of output V1 voltage, the aperture of brake pedal module and its output voltage are inversely proportional to.
Be provided with the accelerator pedal module of output V2 voltage, the aperture of accelerator pedal module is directly proportional with its output voltage.
Be provided with the magnetic powder brake of simulation ground drag,, only need to change microprocessor unit MCU and get final product for the controlling value of tension controller for the different ground drag of simulation; The mode output voltage of microprocessor unit MCU by PWM is that the control signal of V4 is to tension controller, tension controller is according to the output torque of input signal V4 control magnetic powder brake, and the input voltage V4 of the output torque of magnetic powder brake and tension controller is linear.
Battery pack and super capacitor group access in parallel electric machine controller, electric machine controller is connected with motor, and battery pack, super capacitor group are the power source of system.When motor quickens, provide power jointly by battery pack, super capacitor group; When motor is done uniform rotation, power by battery pack.When the super capacitor group can prevent that motor from quickening, the battery pack heavy-current discharge was to the damage of electric battery itself.
Microprocessor unit MCU is connected by the RS232 serial ports with touch display, and temperature sensor is selected SMD temperature sensor for use.
The present invention compared with prior art has following remarkable advantages and beneficial effect:
A kind of electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system by increasing the super capacitor group, are powered jointly with battery pack, have solved single battery pack power supply to the battery pack restriction in serviceable life itself; By to battery pack and super capacitor group voltage, electric current, selection of temperature signal and demonstration, make the operator grasp the state of device operation easily; By real time fail diagnostic alarms module, can make things convenient for, accurately vehicle be keeped in repair; By data memory module, the vehicle condition data all are stored in the External memory equipment, realize by " black box "; By adopting microprocessor unit MCU control,, just whole system can be transplanted in the real vehicle as long as revise a little.
Description of drawings
Fig. 1 is an integral module block diagram of the present invention.
Wherein unit number is described as follows:
1 is MCU, and 2 is battery pack, and 3 is the super capacitor group, and 4 is voltage sensor, 5 is current sensor, and 6 is temperature sensor, and 7 is torque and speed sensors, 8 is motor, and 9 is electric machine controller, and 10 is magnetic powder brake, 11 is tension controller, and 12 is the usb communication module, and 13 is the RS232 serial ports, 14 is External memory equipment, and 15 is touch display, and 16 is filtering circuit, 17 is the accelerator pedal module, and 18 is the brake pedal module, and 19 is sound light alarming circuit.
Embodiment
As shown in Figure 1, microprocessor unit MCU is the control core of whole electric vehicle regenerative braking and energy resource system Comprehensive Experiment dress supervisory system, during initialization, when after selecting corresponding button on the touch-screen, touch-screen is sent to microprocessor unit MCU with detected position signalling, and microprocessor unit MCU judges the button of user's selection and sends corresponding demonstration control command to touch-screen by the RS232 serial ports according to position signalling; The result of torque and speed sensors, voltage sensor, current sensor, temperature sensor measurement is sent to the AD mouth of microprocessor unit MCU with the form of voltage, microprocessor unit MCU by reading the AD mouth value and conversion after obtain the value of rotating speed, torque, voltage, electric current and temperature, and these values be delivered to touch display show; After the voltage that collects, electric current, temperature signal exceeded normal range, sound light alarming circuit can send alarm sound and warning light is reported to the police; Microprocessor unit MCU controls the output voltage of electric machine controller with control rotating speed of motor and required time of motor stall according to the result of data analysis; Microprocessor unit MCU controls the different ground drag of magnetic powder brake simulation by tension controller; All data that microprocessor unit MCU will gather are stored in External memory equipment according to set form, realize " black box " function.
Electric machine controller is selected the MMT-DC48RT100BL of Jinan Ke Ya company for use, and the tension controller model is WLY-1A.
Concrete principle of work is as follows:
1. data acquisition and demonstration: include torque and speed sensors, voltage sensor, current sensor, temperature sensor in the hardware circuit, be used to gather rotating speed of motor, dtc signal, the voltage of super capacitor group, electric current, temperature signal, and the total current signal of voltage, temperature signal and the collection battery pack of each battery in the battery pack.For real time of data acquisition, the present invention utilizes the timer of microprocessor unit MCU to interrupt realizing the collection and the analysis of data, microprocessor unit MCU timer timing is set to 50ms, be every 50ms of mistake, microprocessor unit MCU just can gather and calculate the vehicle condition data, voltage, electric current, temperature, rotating speed, the dtc signal that collects is sent to touch display shows.
2. fault diagnosis and warning: microprocessor unit MCU interrupts constantly the sensing data in the car being gathered by timer, and the data of gathering are calculated, the voltage normal range is-48～48V, the electric current normal range is-40～40A, the temperature normal range is-10～60 ℃, after the voltage that collects, electric current, temperature signal exceed normal range, sound light alarming circuit can send alarm sound and warning light is reported to the police, demonstrate simultaneously the position and the details of the system failure on touch-screen, convenient for maintaining personnel repair fast and accurately.
3. to the control of motor: the voltage of brake pedal module output 5-0V is to microprocessor unit MCU, when not stepping on the brake pedal module, and brake pedal module output 5V voltage; After stepping on the brake pedal module, the aperture of brake pedal module and its output voltage are inversely proportional to.Microprocessor unit MCU is according to the Control of Voltage electric machine controller of brake pedal module output; Electric machine controller is according to the output control motor required time of stall of microprocessor unit MCU; There is proportional relation in the required time of the output voltage of brake pedal module and motor stall, motor rundown time=4* brake pedal module output voltage (s), and the shortest rundown time is 0.2s; Accelerator pedal module output 0-5V voltage is to microprocessor unit MCU, and microprocessor unit MCU is according to the control signal of the output voltage output PWM of accelerator pedal module, and this control signal is controlled electric machine controller; The output voltage control motor speed of electric machine controller; Wherein there are linear relationship in the output voltage of electric machine controller and accelerator pedal module output voltage, electric machine controller output voltage=accelerator pedal module output voltage, there are linear relationship in rotating speed of motor and accelerator pedal module output voltage, motor speed=600* accelerator pedal module output voltage (r/min).
4. to the control of magnetic powder brake: microprocessor unit MCU exports the control signal of 0-5V to tension controller by the mode of PWM, tension controller is according to the moment of input signal control magnetic Vib. output 0-50Nm, and the output torque of magnetic powder brake and the input voltage of tension controller are linear.
5. the energy is selected: battery pack is connected with electric machine controller by switching device with the super capacitor group.Wherein, be composed in series the 48V battery pack by four joint 12V cell batteries; The parameter of super capacitor group is 48V/135F.When detecting acceleration, promptly accelerator pedal is stepped on, and the switching device of microprocessor unit MCU conducting battery pack and super capacitor group is the motor power supply by battery pack and super capacitor group simultaneously; When detecting motor at the uniform velocity or when running slowly, microprocessor unit MCU conducting battery pack switching device turn-offs super capacitor group switching device, by the single power supply of battery pack.
6. " black box " module: " black box " module hardware circuit adopts USB interface chip CH375 to realize.All data storage that electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system can be measured are on the external unit of supporting the USB interface agreement, when crushing damage takes place in vehicle owing to the factor that can not resist strenuously after, public security and relevant departments can destroy preceding transport condition and data according to the content analysis vehicle of External memory equipment the inside, make things convenient for the carrying out of investigation.
7. microprocessor unit MCU: microprocessor unit MCU is the control core of whole electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system, data and the touch-screen to display content of position signalling to determine to measure that microprocessor unit MCU sends by interrupting real-time senses touch screen; Microprocessor unit MCU comes the value of calculating voltage, electric current by the magnitude of voltage that reads the AD mouth; Simultaneously, microprocessor unit MCU and External memory equipment carry out data interaction by USB interface, finish the storage of image data.
Claims (6)
1. electric vehicle regenerative braking and energy resource system comprehensive experimental device supervisory system, it is characterized in that: be provided with microprocessor unit MCU (1), battery pack (2), super capacitor group (3), voltage sensor (4), current sensor (5), temperature sensor (6), torque and speed sensors (7), motor (8), electric machine controller (9), magnetic powder brake (10), tension controller (11), External memory equipment (14), touch display (15), filtering circuit (16), accelerator pedal module (17), brake pedal module (18) and sound light alarming circuit (19);
The monitoring flow process of this invention is: voltage sensor (4), temperature sensor (6) are gathered voltage, the temperature signal of each battery in the battery pack (2) respectively, current sensor (6) is gathered the total current signal of battery pack (2), and the signal that collects difference wave circuit (16) after filtration is delivered to microprocessor unit MCU (1); Voltage sensor (4), current sensor (5), temperature sensor (6) are gathered voltage, electric current, the temperature signal of super capacitor group (3) respectively, and the signal that collects difference wave circuit (16) after filtration is delivered to microprocessor unit MCU (1); Torque and speed sensors (7) is gathered rotating speed, the dtc signal of motor (8), and rotating speed, the dtc signal that collects is delivered to microprocessor unit MCU (1); Microprocessor unit MCU (1) is sent to touch display (15) with voltage, electric current, temperature, rotating speed, the dtc signal that collects and shows; Microprocessor unit MCU (1) is sent to External memory equipment (14) with voltage, electric current, temperature, rotating speed, the dtc signal that collects and stores; After voltage, electric current, temperature signal that microprocessor unit MCU (1) collects exceeded normal range, sound light alarming circuit (19) sends alarm sound and warning light is reported to the police;
The control flow of this invention is: brake pedal module (18) output voltage V 1 to microprocessor unit MCU (1), and microprocessor unit MCU (1) is according to the value control electric machine controller (9) of V1; Electric machine controller (9) is according to output control motor (8) the required time of stall of microprocessor unit MCU (1); There is proportional relation in the required time of V1 and motor stall; Accelerator pedal module (17) output voltage V 2 to microprocessor unit MCU (1), microprocessor unit MCU (1) is according to the control signal of V2 output PWM, and this control signal is controlled electric machine controller (9); Output voltage V 3 control motor (8) rotating speeds of electric machine controller (9); Wherein there are linear relationship in V3, V2, and there are linear relationship in the rotating speed and the V2 of motor (8).
2. electric vehicle regenerative braking according to claim 1 and energy resource system comprehensive experimental device supervisory system is characterized in that: be provided with the brake pedal module (18) of output V1 voltage, aperture and its output voltage of brake pedal module (18) are inversely proportional to.
3. electric vehicle regenerative braking according to claim 1 and energy resource system comprehensive experimental device supervisory system is characterized in that: be provided with the accelerator pedal module (17) of output V2 voltage, the aperture of accelerator pedal module (17) is directly proportional with its output voltage.
4. electric vehicle regenerative braking according to claim 1 and energy resource system comprehensive experimental device supervisory system, it is characterized in that: the magnetic powder brake (10) that is provided with the simulation ground drag, for the different ground drag of simulation, only need to change microprocessor unit MCU (1) and get final product for the controlling value of tension controller (11); The mode output voltage of microprocessor unit MCU (1) by PWM is that the control signal of V4 is to tension controller, tension controller (11) is according to the output torque of input signal V4 control magnetic powder brake (10), and the input voltage V4 of the output torque of magnetic powder brake (10) and tension controller (11) is linear.
5. electric vehicle regenerative braking according to claim 1 and energy resource system comprehensive experimental device supervisory system, it is characterized in that: battery pack of setting (2) and super capacitor group (3) electric machine controller (9) that inserts in parallel, electric machine controller (9) is connected with motor (8), when motor (8) quickens, provide power jointly by battery pack (2), super capacitor group (3); When motor is done uniform rotation, power by battery pack (2).
6. electric vehicle regenerative braking according to claim 1 and energy resource system comprehensive experimental device supervisory system is characterized in that: be provided with SMD temperature sensor (6).
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| CN102419258A (en) * | 2011-09-01 | 2012-04-18 | 北京工业大学 | External storage system for experiment data of electric vehicle |
| CN102431465A (en) * | 2011-11-07 | 2012-05-02 | 湖南南车时代电动汽车股份有限公司 | Protective control method for battery system of battery electric vehicle |
| CN102490624A (en) * | 2011-12-10 | 2012-06-13 | 常州永旭车辆配件厂 | Electromobile controller |
| CN103921786A (en) * | 2014-04-11 | 2014-07-16 | 北京工业大学 | Nonlinear model prediction control method of regenerative braking of electric vehicle |
| CN104080637A (en) * | 2011-12-05 | 2014-10-01 | 雷诺两合公司 | Braking supervision |
| CN104200541A (en) * | 2014-08-25 | 2014-12-10 | 贵州新安航空机械有限责任公司 | Parameter recording device for antiskid braking system of wheel type take-off and landing aircraft |
| CN105891631A (en) * | 2016-04-03 | 2016-08-24 | 北京工业大学 | Electric vehicle three-system integrated test platform |
| CN106451713A (en) * | 2016-08-25 | 2017-02-22 | 深圳市金能弘盛能源科技有限公司 | Motor braking energy recovery system |
| CN107767756A (en) * | 2016-08-17 | 2018-03-06 | 天津博诺智创机器人技术有限公司 | A kind of RV decelerators dismount comprehensive training device |
| CN110426631A (en) * | 2019-08-07 | 2019-11-08 | 哈尔滨理工大学 | The compound test device of new-energy automobile dynamical system and test method |
| CN113390649A (en) * | 2021-05-28 | 2021-09-14 | 联合汽车电子有限公司 | New energy vehicle performance analysis method and device and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103921786A (en) * | 2014-04-11 | 2014-07-16 | 北京工业大学 | Nonlinear model prediction control method of regenerative braking of electric vehicle |
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| CN104200541A (en) * | 2014-08-25 | 2014-12-10 | 贵州新安航空机械有限责任公司 | Parameter recording device for antiskid braking system of wheel type take-off and landing aircraft |
| CN105891631A (en) * | 2016-04-03 | 2016-08-24 | 北京工业大学 | Electric vehicle three-system integrated test platform |
| CN107767756A (en) * | 2016-08-17 | 2018-03-06 | 天津博诺智创机器人技术有限公司 | A kind of RV decelerators dismount comprehensive training device |
| CN106451713A (en) * | 2016-08-25 | 2017-02-22 | 深圳市金能弘盛能源科技有限公司 | Motor braking energy recovery system |
| CN106451713B (en) * | 2016-08-25 | 2019-04-16 | 深圳市金能弘盛能源科技有限公司 | Motor braking energy recycling system |
| CN110426631A (en) * | 2019-08-07 | 2019-11-08 | 哈尔滨理工大学 | The compound test device of new-energy automobile dynamical system and test method |
| CN113390649A (en) * | 2021-05-28 | 2021-09-14 | 联合汽车电子有限公司 | New energy vehicle performance analysis method and device and storage medium |
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