CN103774595B - Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck - Google Patents
Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck Download PDFInfo
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- CN103774595B CN103774595B CN201410023717.8A CN201410023717A CN103774595B CN 103774595 B CN103774595 B CN 103774595B CN 201410023717 A CN201410023717 A CN 201410023717A CN 103774595 B CN103774595 B CN 103774595B
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Abstract
The present invention relates to oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck, when realizing the effective control of upper oil loading pump frequency converter DCAC by CAN communication modes, introduce frequency converter DCAC malfunction feedback, realize frequency converter DCAC fault diagnosis and DTC management. Beneficial effect of the present invention is: learn by a large amount of real vehicle tests, compare with traditional rigid line open loop control, by CAN communication and state feedback control method, on car load, the stability of assembling system and autgmentability have had remarkable lifting. By fault status signal, conveniently realize the fault diagnosis of upper assembling system, be convenient to personnel after sale and carry out malfunction elimination, promote upper assembling system reliability and maintainability.
Description
Technical field
The invention belongs to the standby control technology of installing field on electric environmental sanitation vehicle, relate in particular to oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck.
Background technology
Along with growing tension and the environmental pollution of international crude petroleum resource cause the increasingly stringent that requires to vehicular discharge, new energy vehicle becomes a large core R&D direction of Ge great automobile vendor gradually. In " 12 " in the works, the project of giving priority to that develops into country of new-energy automobile, has obtained national great attention and support energetically. In country's high-tech research development plan (863 Program) also new-energy automobile and relevant item as emphasis, support the development of new-energy automobile and related industry with all one's strength. Under the leading of various preferential policies and motivator, the electric automobile Demonstration And Extension project mushroom development in the whole world, private consumption market is increasingly active, and each side is strengthened greatly to the market expectations of electric automobile.
Current, urban health cleaning, the one, the requirement of active response country to energy-saving and emission-reduction are more and more paid attention in each large, medium and small city; The 2nd, for citizen create clean a, health, healthy living environment; Yes for striving for that the national sanitary city creates basic condition. Therefore, governments at all levels also grow with each passing day to the demand of municipal sanitation cart, and this has also accelerated the demand of market to pure electric sanitation truck. Pure electric sanitation truck, its important power part is mainly: entire car controller, electrokinetic cell and battery manager, chassis drive motors and electric machine controller, Shang Zhuansao road disk-drive motor and controller.
For the driving of Shang Zhuansao road dish, mainly drive oil pump to realize by Oil pump electrical machinery, Oil pump electrical machinery is conventionally by Frequency Converter Control. At present, frequency converter control method is: on driver's direct control, fill motor operation panel, the signal of entire car controller acquisition operations panel, directly carries out control information to upper dress motor by hardwired fashion mutual, reaches the object of controlling upper dress motor. Upper dress motor operation dish is hardware input signal, and fault rate is high, and driver cannot obtain the failure cause that causes shutdown while being out of order. In addition, existing frequency converter DCAC control technology is substantially all the open-loop control method that adopts hardwired fashion, and entire car controller cannot obtain frequency converter DCAC feedback information, thereby cannot carry out fault diagnosis to frequency converter DCAC.
Summary of the invention
The object of this invention is to provide oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck, to overcome prior art above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck, comprises the following steps:
On step 1) whole-control system, low pressure powers on, and entire car controller carries out power-up initializing, has initialized rear entire car controller by sending low-voltage relay adhesive order, powers to upper oil loading pump frequency converter controller by hardwired fashion by low-voltage relay;
Step 2) entire car controller passes through hardware interface or car load CAN network receives car load signal, comprises oil loading pump machine operation request signal, accelerator pedal signal, brake signal, gear signal, emergent stop signal, enabling signal, electrokinetic cell state, GES and motor status;
Step 3) entire car controller judge when vehicle remain static, automobile gear level is in neutral, driver steps on brake pedal, without emergency stop switch press, without charging gun signal; There is enabling signal; There is the driver of judgement to have the high pressure request of powering on; Entire car controller system high pressure powers on; When the rising of motor busbar voltage and after close to cell voltage, entire car controller decision-making system high pressure powers on successfully;
Step 4) car load high-pressure system powers on successfully, and entire car controller carries out upper oil loading pump frequency converter CAN communication failure and detects;
The upper oil loading pump frequency converter CAN communication of step 5) entire car controller judgement is normal, receive the request of oil loading pump machine operation, and high-tension battery electric weight is normal, go up oil loading pump frequency converter DCAC fault-free and report and submit simultaneously, car load control its by CAN upwards oil loading pump frequency converter DCAC send work enable command and output frequency control command; Otherwise sending, frequency converter forbids work enable command and output frequency 0 control command;
When driving, the fault message that entire car controller is is all reported and submitted upper oil loading pump frequency converter DCAC all the time, as feedback signal, participates in upper oil loading pump frequency converter work with step 5) and enables to calculate with operating frequency step 6).
Further, in described step 1), upper oil loading pump frequency converter controller supply relay supply voltage and control method are determined by Full Vehicle System low-pressure system, and supply voltage and control method are that 24V and low limit drive.
Further, described step 2) medium power battery status at least comprises battery electric quantity, battery cell voltage, battery total voltage, battery charging and discharging electric current, positive and negative relay state, battery case temperature, battery management system fault; Motor status at least comprises motor busbar voltage, motor bus current, motor real-turn moment of torsion, motor actual speed, motor temperature, Electric Machine Control actuator temperature, electric machine controller fault.
Further, in described step 3), entire car controller decision-making system high pressure powers on successfully, and motor busbar voltage rises and is 90% close to the concrete ratio of cell voltage.
Further, in described step 4), in detection, the method for oil loading pump frequency converter CAN communication failure is, entire car controller is according to CAN communications protocol, the life signal Counter Value of oil loading pump frequency converter CAN Frame in detection, if continuous 10 ~ 15 frames of Counter Value do not change, judges communication failure; Otherwise judge that communication is normal.
Further, in described step 5), the request of upper oil loading pump machine operation is 24V switching value input signal.
Further, in described step 5), high-tension battery electric weight is normal, refers to that battery electric quantity is not less than minimum setting value, and minimum setting value is 35%.
Further, in described step 5), upper oil loading pump frequency converter DCAC work enable command is customized by CAN communications protocol, and CAN communications protocol content is: 0: do not enable 1: enable.
Further, in described step 5), upper oil loading pump frequency converter DCAC output frequency control command is customized by CAN communications protocol, and CAN communications protocol content is: 0:50 hertz, 1:45 hertz, 2:40 hertz, 3:35 hertz, 4:30 hertz, 5:25 hertz, 6:20 hertz, 7:0 hertz.
Further, in described step 5), the inflating pump motor type that upper oil loading pump frequency converter DCAC output frequency is mated by brakes is determined, if variable-frequency motor, require to calculate depending on concrete motor characteristic and control, motor used is common three phase alternating current motor, and operating frequency is 50 hertz.
Further, in described step 6), the malfunction that upper oil loading pump frequency converter DCAC reports and submits includes but not limited to: low-tension supply fault, CAN communication failure, short trouble, overload fault, high-pressure system overvoltage fault, high-pressure system is under-voltage fault.
Beneficial effect of the present invention is: learn by a large amount of real vehicle tests, compare with traditional rigid line open loop control, by CAN communication and state feedback control method, the stability of upper oil loading pump system and autgmentability have had remarkable lifting. By fault status signal, conveniently realize the fault diagnosis of upper oil loading pump system, be convenient to personnel after sale and carry out malfunction elimination, promote upper oil loading pump system reliability and maintainability.
Brief description of the drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the control flow chart of oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck described in the embodiment of the present invention.
Detailed description of the invention
Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck described in the embodiment of the present invention, when vehicle is in normal condition, according to whole-control system high-low pressure electrifying condition, upper oil loading pump frequency converter DCAC feedback states, according to following steps, upper oil loading pump frequency converter DCAC is controlled:
On step 1) whole-control system, low pressure powers on, and entire car controller carries out power-up initializing, has initialized rear entire car controller by sending low-voltage relay adhesive order, powers to upper oil loading pump frequency converter controller by hardwired fashion by low-voltage relay;
Step 2) entire car controller passes through hardware interface or car load CAN network receives car load signal, as: upper oil loading pump machine operation request signal, accelerator pedal signal, brake signal, gear signal, emergent stop signal, enabling signal, electrokinetic cell state, GES, motor status etc.;
Step 3) entire car controller judge when vehicle remain static, automobile gear level is in neutral, driver steps on brake pedal, without emergency stop switch press, without charging gun signal; There is enabling signal; There is the driver of judgement to have the high pressure request of powering on; Entire car controller system high pressure powers on; When the rising of motor busbar voltage and after close to cell voltage, entire car controller decision-making system high pressure powers on successfully;
Step 4) car load high-pressure system powers on successfully, and entire car controller carries out upper oil loading pump frequency converter CAN communication failure and detects;
The upper oil loading pump frequency converter CAN communication of step 5) entire car controller judgement is normal, receive the request of oil loading pump machine operation, and high-tension battery electric weight is normal, go up oil loading pump frequency converter DCAC fault-free and report and submit simultaneously, car load control its by CAN upwards oil loading pump frequency converter DCAC send work enable command and output frequency control command; Otherwise sending, frequency converter forbids work enable command and output frequency 0 control command;
When driving, the fault message that entire car controller is is all reported and submitted upper oil loading pump frequency converter DCAC all the time, as feedback signal, participates in upper oil loading pump frequency converter work with step 5) and enables to calculate with operating frequency step 6).
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection scope of the present invention.
Claims (10)
1. an oil loading pump frequency converter DCAC control method on electric sanitation truck, is characterized in that, comprises the following steps:
On step 1) whole-control system, low pressure powers on, and entire car controller carries out power-up initializing, has initialized rear entire car controller by sending low-voltage relay adhesive order, powers to upper oil loading pump frequency converter controller by hardwired fashion by low-voltage relay;
Step 2) entire car controller passes through hardware interface or car load CAN network receives car load signal, comprises oil loading pump machine operation request signal, accelerator pedal signal, brake signal, gear signal, emergent stop signal, enabling signal, electrokinetic cell state, GES and motor status;
Step 3) entire car controller judge when vehicle remain static, automobile gear level is in neutral, driver steps on brake pedal, without emergency stop switch press, without charging gun signal; There is enabling signal; There is the driver of judgement to have the high pressure request of powering on; Entire car controller system high pressure powers on; When the rising of motor busbar voltage and after close to cell voltage, entire car controller decision-making system high pressure powers on successfully;
Step 4) car load high-pressure system powers on successfully, and entire car controller carries out upper oil loading pump frequency converter CAN communication failure and detects;
The upper oil loading pump frequency converter CAN communication of step 5) entire car controller judgement is normal, receive the request of oil loading pump machine operation, and high-tension battery electric weight is normal, go up oil loading pump frequency converter DCAC fault-free and report and submit simultaneously, car load control its by CAN upwards oil loading pump frequency converter DCAC send work enable command and output frequency control command; Otherwise sending, frequency converter forbids work enable command and output frequency 0 control command;
When driving, the fault message that entire car controller is is all reported and submitted upper oil loading pump frequency converter DCAC all the time, as feedback signal, participates in upper oil loading pump frequency converter work with step 5) and enables to calculate with operating frequency step 6).
2. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 1), upper oil loading pump frequency converter controller supply relay supply voltage and control method are determined by Full Vehicle System low-pressure system, supply voltage and control method are that 24V and low limit drive.
3. want oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck described in 1 according to right, it is characterized in that: described step 2) medium power battery status at least comprises battery electric quantity, battery cell voltage, battery total voltage, battery charging and discharging electric current, positive and negative relay state, battery case temperature, battery management system fault; Motor status at least comprises motor busbar voltage, motor bus current, motor real-turn moment of torsion, motor actual speed, motor temperature, Electric Machine Control actuator temperature, electric machine controller fault.
4. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 3), entire car controller decision-making system high pressure powers on successfully, and motor busbar voltage rises and is 90% close to the concrete ratio of cell voltage.
5. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 4), in detection, the method for oil loading pump frequency converter CAN communication failure is, entire car controller is according to CAN communications protocol, the life signal Counter Value of oil loading pump frequency converter CAN Frame in detection, if continuous 10 ~ 15 frames of Counter Value do not change, judge communication failure; Otherwise judge that communication is normal.
6. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, is characterized in that: in described step 5), the request of upper oil loading pump machine operation is 24V switching value input signal.
7. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, is characterized in that: in described step 5), high-tension battery electric weight is normal, refers to that battery electric quantity is not less than minimum setting value, and minimum setting value is 35%.
8. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 5), upper oil loading pump frequency converter DCAC work enable command is customized by CAN communications protocol, and CAN communications protocol content is: 0: do not enable 1: enable.
9. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 5), upper oil loading pump frequency converter DCAC output frequency control command is customized by CAN communications protocol, and CAN communications protocol content is: 0:50 hertz, 1:45 hertz, 2:40 hertz, 3:35 hertz, 4:30 hertz, 5:25 hertz, 6:20 hertz, 7:0 hertz.
10. oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck according to claim 1, it is characterized in that: in described step 5), the inflating pump motor type that upper oil loading pump frequency converter DCAC output frequency is mated by brakes is determined, if variable-frequency motor, require to calculate depending on concrete motor characteristic and control, motor used is common three phase alternating current motor, and operating frequency is 50 hertz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410023717.8A CN103774595B (en) | 2014-01-17 | 2014-01-17 | Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck |
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| CN201410023717.8A CN103774595B (en) | 2014-01-17 | 2014-01-17 | Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck |
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| CN103774595B true CN103774595B (en) | 2016-05-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112821808B (en) * | 2021-01-06 | 2022-09-30 | 东风华神汽车有限公司 | Control method and system for motor mounted on electric sanitation vehicle based on safe operation of whole vehicle |
| CN113119997B (en) * | 2021-04-16 | 2022-08-19 | 北京理工中云智车科技有限公司 | Safety control system for wire-controlled chassis of unmanned vehicle |
| CN114425950A (en) * | 2022-02-25 | 2022-05-03 | 三一电动车科技有限公司 | Electric vehicle control method and system and electric vehicle |
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| DE20204959U1 (en) * | 2002-03-28 | 2002-09-12 | Polak Ludwig | Mobile device for removing dog droppings |
| CN101670789A (en) * | 2009-10-12 | 2010-03-17 | 上海中科深江电动车辆有限公司 | Power-driven operating vehicle dynamic system and driving control method thereof |
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| CN203166735U (en) * | 2013-01-21 | 2013-08-28 | 江苏力普电子科技有限公司 | High voltage frequency converter capable of automatically diagnosing and recording faults |
| CN103312818A (en) * | 2013-07-03 | 2013-09-18 | 深圳市元征科技股份有限公司 | Vehicle diagnostic method and server |
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2014
- 2014-01-17 CN CN201410023717.8A patent/CN103774595B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| DE20204959U1 (en) * | 2002-03-28 | 2002-09-12 | Polak Ludwig | Mobile device for removing dog droppings |
| CN101675195A (en) * | 2007-08-09 | 2010-03-17 | 日立建机株式会社 | Operating machine instrument diagnostic apparatus and instrument diagnostic system |
| CN101670789A (en) * | 2009-10-12 | 2010-03-17 | 上海中科深江电动车辆有限公司 | Power-driven operating vehicle dynamic system and driving control method thereof |
| CN202231750U (en) * | 2011-07-28 | 2012-05-23 | 福信富通（福建）网络科技有限公司 | Vehicle-loaded remote intelligent diagnosis terminal based on bluetooth acquisition |
| CN102546295A (en) * | 2011-12-31 | 2012-07-04 | 重庆长安汽车股份有限公司 | CAN (Controller Area Network) detecting method of hybrid vehicle based on rigid line control |
| CN203166735U (en) * | 2013-01-21 | 2013-08-28 | 江苏力普电子科技有限公司 | High voltage frequency converter capable of automatically diagnosing and recording faults |
| CN103312818A (en) * | 2013-07-03 | 2013-09-18 | 深圳市元征科技股份有限公司 | Vehicle diagnostic method and server |
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