CN112821808B - Control method and system for motor mounted on electric sanitation vehicle based on safe operation of whole vehicle - Google Patents
Control method and system for motor mounted on electric sanitation vehicle based on safe operation of whole vehicle Download PDFInfo
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- CN112821808B CN112821808B CN202110012587.8A CN202110012587A CN112821808B CN 112821808 B CN112821808 B CN 112821808B CN 202110012587 A CN202110012587 A CN 202110012587A CN 112821808 B CN112821808 B CN 112821808B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details
- H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a control method and a system for a motor mounted on an electric sanitation truck based on safe operation of the whole truck, relating to the technical field of electric sanitation trucks and comprising the following steps: before the upper motor is started, if the high-voltage battery, the driving motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle control unit controls the upper high-voltage relay to be closed to allow the upper motor to be started; when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two-stage faults or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the whole vehicle controller controls the upper motor to stop. The invention can avoid the starting of the upper motor in the unsafe state of the vehicle and also can avoid the problem of more serious faults caused by the continuous work of the upper motor due to the fact that the whole vehicle has a fault and has no control strategy when the upper motor works.
Description
Technical Field
The invention relates to the technical field of electric sanitation vehicles, in particular to a control method and a system for an electric sanitation vehicle upper-mounted motor based on safe operation of a whole vehicle.
Background
Along with the popularization and application of new energy automobiles in public service fields such as sanitation and the like, the electric sanitation automobiles meet good development opportunities. Compared with the traditional diesel sanitation vehicle, the new energy electric sanitation vehicle can achieve zero pollution emission, and has the advantages of low noise, low charging cost and less maintenance during running and operation. Similar to the traditional diesel sanitation vehicle, the electric sanitation vehicle is also provided with a loading device for loading garbage and other articles, and the main power element of the electric sanitation vehicle is a loading motor.
In the related technology, a driver presses an electric switch of a cab, a low-voltage power supply controls a high-voltage relay to be closed, and an upper motor is connected with a high-voltage battery and starts to work.
However, in the prior art, a simple low-voltage power supply signal controls a high-voltage relay to be closed, and high-voltage power is supplied to an upper motor. Along with more and more new forms of energy electric sanitation car on putting into the market, there are many problems in the operation of dress work in fact, if: the service time of the upper motor is long, so that the electric quantity of the high-voltage battery is too low, and the driving range of the electric sanitation vehicle is too short to reach a charging position; when the core electrical device of the chassis is in fault, the upper motor still works continuously, so that the fault is further enlarged, the after-sale maintenance investment is too large, a large amount of manpower and energy are wasted, and the use cost is increased. Therefore, the existing control method for the motor mounted on the electric sanitation vehicle has simpler functions, is easy to cause the electric sanitation vehicle to be used under unsafe conditions, and increases the use cost of the electric sanitation vehicle.
Disclosure of Invention
The embodiment of the invention provides a control method and a control system for a motor mounted on an electric sanitation vehicle based on safe operation of the whole vehicle, and aims to solve the technical problems that the function of the control method in the related technology is simple, the electric sanitation vehicle is easy to use under unsafe conditions, and the use cost of the electric sanitation vehicle is increased.
In a first aspect, a control method for a motor mounted on an electric sanitation truck based on safe operation of the whole truck is provided, and comprises the following steps:
before the upper motor is started, if the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle control unit controls the upper high-voltage relay to be closed to allow the upper motor to be started;
when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two-stage faults or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the vehicle controller controls the upper motor to stop.
In some embodiments, before the upper motor is started, the controller of the upper motor performs self-checking, and feeds back the real-time state of the upper motor to the vehicle control unit, and if the real-time state of the upper motor is a stop state, the vehicle control unit judges that the upper motor has no more than two-stage fault at the moment.
In some embodiments, before the upper-mounted motor is started, the vehicle control unit detects whether the upper-mounted high-voltage relay is disconnected, and if yes, the vehicle control unit judges that the upper-mounted high-voltage relay has no more than two-stage fault at the moment.
In some embodiments, before the upper motor is started, the controller of the running motor performs self-checking, and feeds back the real-time state of the running motor to the vehicle control unit, and if the running motor does not have more than two levels of faults, such as motor bus overvoltage, motor overcurrent, motor overload or current null shift, the vehicle control unit judges that the running motor does not have more than two levels of faults at the moment.
In some embodiments, before the upper motor is started, the controller of the high-voltage battery performs self-checking and feeds back the real-time state of the high-voltage battery to the vehicle control unit, and if the high-voltage battery does not have more than two-level faults of battery overheating, battery overvoltage, battery overcurrent or battery overload, the vehicle control unit judges that the high-voltage battery does not have more than two-level faults at the moment.
In some embodiments, when the upper-mounted motor works, the controller of the upper-mounted motor feeds back the real-time state of the upper-mounted motor to the vehicle control unit, and if the real-time state of the upper-mounted motor is standby or running, the upper-mounted motor does not have more than two-stage faults at the moment.
In some embodiments, the vehicle control unit controls the on-board high-voltage relay to be closed and allows the on-board motor to be started, and further includes the following steps:
and the vehicle control unit detects whether the upper-mounted high-voltage relay is closed, if so, the vehicle control unit judges that the upper-mounted high-voltage relay has no fault of more than two levels at the moment, and the upper-mounted motor is allowed to be started.
In some embodiments, the vehicle control unit controls the onboard motor to stop, and further includes the following steps:
and the controller of the upper motor feeds back the real-time state of the upper motor to the vehicle control unit, and if the vehicle control unit does not receive the feedback information of the controller of the upper motor after the preset time interval, the controller controls the upper high-voltage relay to be switched off.
The second aspect provides an electronic sanitation car facial make-up motor control system based on whole car safe operation, its characterized in that includes: the system comprises a vehicle control unit, a high-voltage battery, a running motor, an upper high-voltage relay and an upper motor;
the vehicle control unit is electrically connected with the high-voltage battery, the running motor, the upper-mounted high-voltage relay and the upper-mounted motor, and is configured to:
before the upper motor is started, if the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle controller is used for controlling the upper high-voltage relay to be closed and allowing the upper motor to be started;
when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two-stage faults or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the vehicle control unit is used for controlling the upper motor to stop.
In some embodiments, the electric sanitation vehicle mounted motor control system based on the safe operation of the whole vehicle further includes:
and the instrument is electrically connected with the vehicle control unit and is used for displaying more than two levels of fault information of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor and also used for displaying the electric quantity of the high-voltage battery.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a control method and a system for an upper motor of an electric sanitation vehicle based on safe operation of the whole vehicle. When the upper motor works, whether the faults of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor are more than two levels or not is continuously judged, whether the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value is judged, the problem that the electric vehicle has more serious faults due to the fact that the upper motor continuously works in the unsafe state of the vehicle is avoided, and the use and maintenance cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a control method for an electric sanitation truck mounted motor according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a control system of an electric sanitation truck mounted motor according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a control method for a motor mounted on an electric sanitation truck based on safe operation of the whole truck, which can solve the technical problems that the function of the control method in the related technology is simpler, the electric sanitation truck is easy to use under unsafe conditions, and the use cost of the electric sanitation truck is increased.
Referring to fig. 1, a control method for a motor mounted on an electric sanitation truck based on safe operation of the whole truck includes the following steps:
before the upper motor is started, if the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no faults more than two levels, and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle control unit controls the upper high-voltage relay to be closed, and the upper motor is allowed to be started.
When the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two-stage faults or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the vehicle controller controls the upper motor to stop.
Specifically, before the upper motor is started:
and the controller of the upper motor performs self-checking, feeds back the real-time state of the upper motor to the whole vehicle controller, and if the real-time state of the upper motor is a halt state, the whole vehicle controller judges that the upper motor has no more than two-stage fault at the moment. The state of the upper motor is detected, the upper motor is prevented from being started in a fault state, and the use safety of the upper motor and the use safety of the whole vehicle are protected.
And the vehicle control unit detects whether the upper high-voltage relay is disconnected, and if so, the vehicle control unit judges that the upper high-voltage relay has no more than two-stage fault at the moment. The state of the high-voltage relay is detected, whether the upper-mounted high-voltage relay has an adhesion fault or not can be quickly detected, the situation that the front end has high-voltage input and cannot cut off high voltage electricity when the upper-mounted motor is not allowed to be started is avoided, and potential safety hazards are reduced.
And the controller of the running motor carries out self-checking, and feeds back the real-time state of the running motor to the vehicle control unit, and if the running motor does not have the faults of more than two levels, such as motor bus overvoltage, motor overcurrent, motor overload or current zero drift, the vehicle control unit judges that the running motor does not have the faults of more than two levels at the moment. The state of the running motor is detected, the upper motor is prevented from being started in a fault state, and the use safety of the upper motor and the use safety of the whole vehicle are protected.
And the controller of the high-voltage battery performs self-checking, feeds back the real-time state of the high-voltage battery to the vehicle control unit, and if the high-voltage battery does not have more than two-level faults of battery overheating, battery overvoltage, battery overcurrent or battery overload, the vehicle control unit judges that the high-voltage battery does not have more than two-level faults at the moment. The state of the high-voltage battery is detected, the upper motor is prevented from being started in the fault state of the high-voltage battery, and the use safety of the upper motor and the use safety of the whole vehicle are protected.
The electric quantity of the high-voltage battery is detected to be larger than a preset electric quantity threshold value, if yes, the electric quantity of the high-voltage battery is judged to be enough, the upper-mounted motor can be allowed to be started, the upper-mounted motor is prevented from being started due to the fact that the electric quantity of the high-voltage battery is low, and the electric sanitation vehicle cannot normally run to a charging position after the upper-mounted motor works. The preset charge threshold may be 30% of the total charge of the high voltage battery.
When the upper motor is started:
and the controller of the upper motor feeds back the working state of the upper motor in real time, and if the upper motor is in a standby or running state, the upper motor is judged to have no fault. The state of the upper motor is detected, the upper motor is prevented from continuously working in a fault state, and the use safety of the upper motor and the use safety of the whole vehicle are protected.
Before the upper motor is started, whether the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no fault which affects performance and limits running for more than two levels is detected, whether the electric quantity of the high-voltage battery is larger than a preset electric quantity threshold value is judged, and the upper motor is prevented from being started to work in an unsafe state of a vehicle; the upper assembling motor during operation continuously judges whether the high-voltage battery, the running motor, the upper assembling high-voltage relay and the upper assembling motor have faults more than two levels, continuously judges whether the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, avoids the continuous work of the upper assembling motor, leads to the more serious fault problem of the electric vehicle, and reduces the use and maintenance cost.
As an optional implementation mode, before the upper-mounted motor works, the vehicle control unit controls the upper-mounted high-voltage relay to be closed to allow the upper-mounted motor to be started, and the method further comprises the following steps: and the vehicle control unit detects whether the upper-mounted high-voltage relay is closed, if so, the vehicle control unit judges that the upper-mounted high-voltage relay has no fault of more than two levels at the moment, and the upper-mounted motor is allowed to be started. Before allowing the facial make-up motor to open, detect facial make-up high voltage relay state, whether can the short-term test high voltage relay has closed trouble, effectively improves after-sales maintenance efficiency.
As an optional implementation mode, when the upper-mounted motor works, the vehicle control unit controls the upper-mounted motor to stop, and the method further comprises the following steps: and the controller of the upper motor feeds back the real-time state of the upper motor to the vehicle control unit, and if the vehicle control unit does not receive the feedback information of the controller of the upper motor after the preset time interval, the controller controls the upper high-voltage relay to be switched off. Specifically, if the vehicle control unit does not receive feedback information of the controller of the upper motor after the preset time interval, the communication is judged to be overtime, the vehicle control unit detects whether the current of the upper high-voltage relay is smaller than 5A or not at the moment, if so, the upper high-voltage relay is controlled to be disconnected, the controller of the upper motor and the upper high-voltage relay are protected, the phenomenon that the power supply is cut off under load, an arc effect is generated, the controller and the high-voltage relay are adhered and damaged is avoided, and the safety and the stability of the whole vehicle are improved.
Referring to fig. 2, an embodiment of the present invention provides a control system for a motor mounted on an electric sanitation truck based on safe operation of the entire truck, including: the system comprises a vehicle control unit, a high-voltage battery, a running motor, an upper high-voltage relay and an upper motor.
The vehicle control unit is electrically connected with the high-voltage battery, the running motor, the upper-mounted high-voltage relay and the upper-mounted motor, and is configured to:
before the upper motor is started, if the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle controller is used for controlling the upper high-voltage relay to be closed and allowing the upper motor to be started;
when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two-stage faults or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the whole vehicle controller is used for controlling the upper motor to stop.
According to the control system of the electric sanitation truck upper motor, before the upper motor is started, whether the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no fault which affects performance and limits running for more than two levels is detected, whether the electric quantity of the high-voltage battery is larger than a preset electric quantity threshold value is judged, and the upper motor is prevented from being started to work in an unsafe state of a vehicle; the upper assembling motor during operation continuously judges whether the high-voltage battery, the running motor, the upper assembling high-voltage relay and the upper assembling motor have faults more than two levels, continuously judges whether the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, avoids the continuous work of the upper assembling motor, leads to the more serious fault problem of the electric vehicle, and reduces the use and maintenance cost.
As an optional implementation manner, the control system for the motor mounted on the electric sanitation truck in the embodiment of the present invention further includes an instrument, the instrument is electrically connected to the vehicle control unit, and the instrument is used for displaying the electric quantity of the high voltage battery, the motor mounted on the electric sanitation truck, the high voltage relay mounted on the electric sanitation truck, and the fault information of the chassis core electrical device, so as to facilitate observation by the staff.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A control method for a motor installed on an electric sanitation truck based on safe operation of the whole truck is characterized by comprising the following steps:
before the upper motor is started, if the high-voltage battery, the driving motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle control unit controls the upper high-voltage relay to be closed to allow the upper motor to be started;
when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two stages of faults, or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the whole vehicle controller controls the upper motor to stop;
before the upper motor is started, the controller of the upper motor performs self-checking and feeds back the real-time state of the upper motor to the vehicle control unit, and if the real-time state of the upper motor is stopped, the vehicle control unit judges that the upper motor has no more than two-stage fault at the moment;
before the upper-mounted motor is started, the vehicle control unit detects whether the upper-mounted high-voltage relay is disconnected, and if yes, the vehicle control unit judges that the upper-mounted high-voltage relay does not have more than two-stage faults at the moment.
2. The electric sanitation vehicle mounted motor control method based on vehicle safety operation of claim 1, characterized in that:
before the upper motor is started, the controller of the running motor performs self-checking, the real-time state of the running motor is fed back to the vehicle control unit, and if the running motor does not have more than two-level faults of motor bus overvoltage, motor overcurrent, motor overload or current zero drift, the vehicle control unit judges that the running motor does not have more than two-level faults at the moment.
3. The electric sanitation vehicle mounted motor control method based on vehicle safety operation of claim 1, characterized in that:
before the upper motor is started, the controller of the high-voltage battery performs self-checking, and feeds back the real-time state of the high-voltage battery to the vehicle control unit, if the high-voltage battery does not have the faults of more than two levels, such as battery overheating, battery overvoltage, battery overcurrent or battery overload, the vehicle control unit judges that the high-voltage battery does not have the faults of more than two levels.
4. The electric sanitation vehicle motor control method based on safe operation of the whole vehicle as claimed in claim 1, characterized in that:
when the upper motor works, the controller of the upper motor feeds back the real-time state of the upper motor to the whole vehicle controller, and if the real-time state of the upper motor is standby or running, the upper motor has no more than two-stage fault at the moment.
5. The electric sanitation vehicle motor control method based on safe operation of the whole vehicle as claimed in claim 1, wherein the whole vehicle controller controls the on-load high-voltage relay to be closed and allows the on-load motor to be turned on, further comprising the steps of:
the vehicle control unit detects whether the upper-mounted high-voltage relay is closed, if yes, the vehicle control unit judges that the upper-mounted high-voltage relay has no more than two-stage fault at the moment, and the upper-mounted motor is allowed to be started.
6. The electric sanitation vehicle mounted motor control method based on vehicle safety operation of claim 1, wherein the vehicle control unit controls the mounted motor to stop, further comprising the steps of:
and the controller of the upper motor feeds back the real-time state of the upper motor to the vehicle control unit, and if the vehicle control unit does not receive the feedback information of the controller of the upper motor after the preset time interval, the controller controls the upper high-voltage relay to be switched off.
7. The utility model provides an electronic sanitation car facial make-up motor control system based on whole car safe operation which characterized in that includes: the system comprises a vehicle control unit, a high-voltage battery, a running motor, an upper high-voltage relay and an upper motor;
vehicle control unit and high voltage battery, the motor that traveles, facial make-up high voltage relay and facial make-up motor electricity are connected, and are configured as:
before the upper motor is started, if the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor have no more than two-stage faults and the electric quantity of the high-voltage battery is greater than a preset electric quantity threshold value, the vehicle control unit is used for controlling the upper high-voltage relay to be closed and allowing the upper motor to be started;
when the upper motor works, if any one of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor has more than two stages of faults, or the electric quantity of the high-voltage battery is not more than a preset electric quantity threshold value, the whole vehicle controller is used for controlling the upper motor to stop;
before the upper motor is started, the controller of the upper motor performs self-checking and feeds back the real-time state of the upper motor to the vehicle control unit, and if the real-time state of the upper motor is stopped, the vehicle control unit judges that the upper motor has no more than two-stage fault at the moment;
before the upper-mounted motor is started, the vehicle control unit detects whether the upper-mounted high-voltage relay is disconnected, and if yes, the vehicle control unit judges that the upper-mounted high-voltage relay does not have more than two-stage faults at the moment.
8. The electric sanitation vehicle upper-mounted motor control system based on safe operation of the whole vehicle as claimed in claim 7, further comprising:
and the instrument is electrically connected with the vehicle control unit and is used for displaying more than two levels of fault information of the high-voltage battery, the running motor, the upper high-voltage relay and the upper motor and also used for displaying the electric quantity of the high-voltage battery.
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| CN202110012587.8A CN112821808B (en) | 2021-01-06 | 2021-01-06 | Control method and system for motor mounted on electric sanitation vehicle based on safe operation of whole vehicle |
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| CN202110012587.8A CN112821808B (en) | 2021-01-06 | 2021-01-06 | Control method and system for motor mounted on electric sanitation vehicle based on safe operation of whole vehicle |
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| CN112821808B true CN112821808B (en) | 2022-09-30 |
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| US8115334B2 (en) * | 2009-02-18 | 2012-02-14 | General Electric Company | Electrically driven power take-off system and method of manufacturing same |
| CN101570181A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Hybrid vehicle battery fault management system and management method thereof |
| CN103669265B (en) * | 2013-12-20 | 2016-08-17 | 北京智行鸿远汽车技术有限公司 | Motor control method is filled on pure electric sanitation truck based on CAN network |
| CN103774595B (en) * | 2014-01-17 | 2016-05-25 | 北京智行鸿远汽车技术有限公司 | Oil loading pump frequency converter DCAC control method on a kind of electric sanitation truck |
| CN210706923U (en) * | 2019-05-17 | 2020-06-09 | 森源汽车股份有限公司 | Sanitation vehicle |
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