CN112810440A - Pneumatic power quick-break system of pure electric bus and working method of pneumatic power quick-break system - Google Patents
Pneumatic power quick-break system of pure electric bus and working method of pneumatic power quick-break system Download PDFInfo
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- CN112810440A CN112810440A CN202110156201.0A CN202110156201A CN112810440A CN 112810440 A CN112810440 A CN 112810440A CN 202110156201 A CN202110156201 A CN 202110156201A CN 112810440 A CN112810440 A CN 112810440A
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- power
- motor
- battery
- motor controller
- air pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K2028/003—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions inhibiting the starter motor, e.g. by controlling ignition or park lock circuits
Abstract
The invention discloses a pneumatic power quick-break system of a pure electric bus and a working method thereof, wherein the system comprises a battery, a high-voltage cabinet, a four-in-one battery, a pneumatic switch, a motor controller, a motor, an air source, a knob valve and an instrument, the battery, the high-voltage cabinet, the four-in-one battery, the motor controller and the motor form a vehicle power transmission system, the air source, the knob valve and the pneumatic switch form a power quick-break control system, the pneumatic switch and the instrument form the power quick-break alarm system, and the battery is a working power supply of the motor controller. The invention adds a forced power cut-off device, when the vehicle is in an uncontrollable state, the driver can effectively and timely cut off the power output by controlling the knob valve, thereby greatly relieving the risk caused by the out-of-control power of the vehicle, lightening the casualties and reducing the property loss.
Description
The technical field is as follows:
the invention relates to a pneumatic power quick-break system of a pure electric bus and a working method thereof, and belongs to the technical field of pure electric buses.
Background art:
in recent years, with the development of pure electric vehicles, the pure electric vehicles are popularized in China and are gradually popularized in the world, the safety problem of the pure electric vehicles is also a place of major concern of various host factories and operators, and because a power system is almost controlled by a complete vehicle VCU, when the VCU is uncontrollable, a driver cannot cut off power through an electric control system in time, and potential safety hazards exist.
Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.
The invention content is as follows:
the invention provides a pure electric bus pneumatic power quick-break system and a working method thereof for solving the problems in the prior art, and the pneumatic control module is added in the pure electric bus power control system, so that the pneumatic control module can forcibly cut off the power transmission of the pure electric bus immediately after a driver starts in an emergency state (for example, after an accelerator pedal is released, the vehicle still accelerates), the risk caused by the out-of-control electric control system of the pure electric bus in the driving process can be effectively reduced, and the driving safety of the pure electric bus is greatly improved.
The invention adopts the following technical scheme: the utility model provides a pure [ electric ] motor coach vapour-pressure type power emergency break system, includes battery, high-voltage board, four unifications, battery, baroswitch, machine controller, motor, air supply, knob valve and instrument, battery, high-voltage board, four unifications, machine controller and motor constitute vehicle power transmission system, air supply, knob valve and baroswitch constitute power emergency break control system, this power emergency break alarm system is constituteed to baroswitch and instrument, the battery is machine controller working power supply.
The invention also adopts the following technical scheme: a working method of a pneumatic power quick-break system of a pure electric bus comprises the following specific steps:
the method comprises the following steps: when the vehicle is started, the storage battery provides a low-voltage 24V power supply for the motor controller, the high-voltage cabinet, the four-in-one and a relay in the motor controller are closed, so that a power system is in a standby state, after the VCU of the vehicle controller receives a power request command, the battery serves as a power source, high-voltage electricity is transmitted to the high-voltage cabinet for processing, the high-voltage electricity is output to the motor controller after the high-voltage electricity is processed again through the four-in-one shunt, three-phase electricity is output to the motor by the motor controller, the motor rotates to drive the transmission system to work, and the;
step two: the power quick-break control system is characterized in that a normally-open air pressure switch is arranged between a storage battery for providing a working power supply for the motor controller and a circuit of the motor controller, a knob valve is connected with the air pressure switch, the control air pressure is provided by an air source, when a driver operates the knob valve to open, the air instantly reaches the air pressure switch, the air pressure switch is kept in a disconnected state, the motor controller is connected with the air pressure switch in a disconnection mode, the motor controller loses working capacity, and the motor does not output;
step three: after the air pressure switch is disconnected, the ECU of the instrument receives a disconnection signal, and after the ECU of the instrument processes the signal, the instrument display screen displays 'power forced interruption', the buzzer is controlled to give an alarm, the danger warning lamp is controlled to flicker, and vehicles and pedestrians coming and going are prompted.
The invention has the following beneficial effects: the pneumatic power quick-break system of the pure electric bus is additionally provided with the forced power cut-off device, when the bus is in an uncontrollable state, a driver can effectively and timely cut off power output through the control knob valve, the risk caused by the incontrollable power of the bus can be greatly relieved, casualties can be reduced, and property loss can be reduced. And only 1 air pressure switch and 1 knob valve need be added, and the whole car gas circuit and the instrument CPU control logic are correspondingly changed, so that the design concept is simple, ingenious and effective, and the device is suitable for general popularization.
Description of the drawings:
FIG. 1 is a schematic diagram of a pneumatic power quick-break system of a pure electric bus according to the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
The pneumatic power quick-break system of the pure electric bus comprises a battery 1, a high-voltage cabinet 2, a four-in-one 3, a storage battery 4, a pneumatic switch 5, a motor controller, a motor 7, an air source 8, a knob valve 9 and an instrument 10, wherein the battery 1, the high-voltage cabinet 2, the four-in-one 3, the motor controller 6 and the motor 7 form a vehicle power transmission system, the air source 8, the knob valve 9 and the pneumatic switch 5 form a power quick-break control system, namely the storage battery 4 is disconnected to supply power to the motor controller 6, the pneumatic switch 5 and the instrument 10 form the power quick-break alarm system, and the storage battery 4 is a working power supply of the motor controller 6
The invention relates to a working method of a pneumatic power quick-break system of a pure electric bus, which comprises the following specific steps:
the method comprises the following steps: after the vehicle is started, the storage battery (4) provides a low-voltage 24V power supply for the motor controller (6), the high-voltage cabinet (2), the four-in-one (3) and a relay in the motor controller (6) are closed, so that a power system is in a standby state, after the Vehicle Control Unit (VCU) receives a power request command, the battery (1) serves as a power source, high-voltage electricity is transmitted to the high-voltage cabinet (2) for processing, then is shunted and reprocessed through the four-in-one (3), and is output to the motor controller (6), then three-phase electricity is output to the motor (7) through the motor controller (6), the motor (7) rotates to drive the transmission system to work, and the;
step two: the power quick-break control system is characterized in that a normally-open air pressure switch (5) is arranged between a storage battery (4) for providing a working power supply for a motor controller (6) and a circuit of the motor controller (6), a knob valve (9) is connected with the air pressure switch (5), control air pressure is provided by an air source (8), when a driver operates the knob valve (9) to open, air instantly reaches the air pressure switch (5) to enable the air pressure switch (5) to keep a disconnected state, the motor controller (6) is disconnected with the air pressure switch (5), the motor controller (6) loses working capacity, and the motor does not output;
step three: after the air pressure switch (5) is disconnected, the ECU of the instrument (10) receives a disconnection signal, and after the ECU of the instrument (10) processes the signal, the instrument display screen displays 'power forced interruption', the buzzer is controlled to give an alarm, the danger warning lamp is controlled to flash, and vehicles and pedestrians coming and going are prompted.
The pneumatic power quick-break system of the pure electric bus is additionally provided with the forced power cut-off device, when the bus is in an uncontrollable state, a driver can effectively and timely cut off power output through the control knob valve, the risk caused by the incontrollable power of the bus can be greatly relieved, casualties can be reduced, and property loss can be reduced. And only 1 air pressure switch and 1 knob valve need be added, and the whole car gas circuit and the instrument CPU control logic are correspondingly changed, so that the design concept is simple, ingenious and effective, and the device is suitable for general popularization.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (2)
1. The utility model provides a pure [ electric ] motor coach vapour-pressure type power system of cutting suddenly which characterized in that: including battery (1), high-voltage board (2), four unification (3), battery (4), baroswitch (5), machine controller (6), motor (7), air supply (8), knob valve (9) and instrument (10), battery (1), high-voltage board (2), four unification (3), machine controller (6) and motor (7) constitute vehicle power transmission system, power snap-off control system is constituteed in air supply (8), knob valve (9) and baroswitch (5), this power snap-off alarm system is constituteed in baroswitch (5) and instrument (10), battery (4) are machine controller (6) working power supply.
2. A working method of a pneumatic power quick-break system of a pure electric bus is characterized by comprising the following steps: the method comprises the following specific steps:
the method comprises the following steps: after the vehicle is started, the storage battery (4) provides a low-voltage 24V power supply for the motor controller (6), the high-voltage cabinet (2), the four-in-one (3) and a relay in the motor controller (6) are closed, so that a power system is in a standby state, after the Vehicle Control Unit (VCU) receives a power request command, the battery (1) serves as a power source, high-voltage electricity is transmitted to the high-voltage cabinet (2) for processing, then is shunted and reprocessed through the four-in-one (3), and is output to the motor controller (6), then three-phase electricity is output to the motor (7) through the motor controller (6), the motor (7) rotates to drive the transmission system to work, and the;
step two: the power quick-break control system is characterized in that a normally-open air pressure switch (5) is arranged between a storage battery (4) for providing a working power supply for a motor controller (6) and a circuit of the motor controller (6), a knob valve (9) is connected with the air pressure switch (5), control air pressure is provided by an air source (8), when a driver operates the knob valve (9) to open, air instantly reaches the air pressure switch (5) to enable the air pressure switch (5) to keep a disconnected state, the motor controller (6) is disconnected with the air pressure switch (5), the motor controller (6) loses working capacity, and the motor does not output;
step three: after the air pressure switch (5) is disconnected, the ECU of the instrument (10) receives a disconnection signal, and after the ECU of the instrument (10) processes the signal, the instrument display screen displays 'power forced interruption', the buzzer is controlled to give an alarm, the danger warning lamp is controlled to flash, and vehicles and pedestrians coming and going are prompted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156201.0A CN112810440A (en) | 2021-02-04 | 2021-02-04 | Pneumatic power quick-break system of pure electric bus and working method of pneumatic power quick-break system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156201.0A CN112810440A (en) | 2021-02-04 | 2021-02-04 | Pneumatic power quick-break system of pure electric bus and working method of pneumatic power quick-break system |
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| CN112810440A true CN112810440A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110156201.0A Pending CN112810440A (en) | 2021-02-04 | 2021-02-04 | Pneumatic power quick-break system of pure electric bus and working method of pneumatic power quick-break system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188595Y (en) * | 2008-04-28 | 2009-01-28 | 北京清能华通科技发展有限公司 | Start-up control and operation protective system for electric motor of electric automobile compressor |
| CN102582608A (en) * | 2012-02-29 | 2012-07-18 | 湖南南车时代电动汽车股份有限公司 | Emergency braking electrical control device of purely electric automobile |
| JP2014162262A (en) * | 2013-02-21 | 2014-09-08 | Toyota Motor Corp | Travel control unit of hybrid vehicle |
| CN107117067A (en) * | 2017-03-31 | 2017-09-01 | 广州电力机车有限公司 | A kind of electric sanitation vehicle control |
| CN107200002A (en) * | 2017-07-11 | 2017-09-26 | 安徽合力股份有限公司 | The stopping brake control device and its control method of a kind of electri forklift |
-
2021
- 2021-02-04 CN CN202110156201.0A patent/CN112810440A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188595Y (en) * | 2008-04-28 | 2009-01-28 | 北京清能华通科技发展有限公司 | Start-up control and operation protective system for electric motor of electric automobile compressor |
| CN102582608A (en) * | 2012-02-29 | 2012-07-18 | 湖南南车时代电动汽车股份有限公司 | Emergency braking electrical control device of purely electric automobile |
| JP2014162262A (en) * | 2013-02-21 | 2014-09-08 | Toyota Motor Corp | Travel control unit of hybrid vehicle |
| CN107117067A (en) * | 2017-03-31 | 2017-09-01 | 广州电力机车有限公司 | A kind of electric sanitation vehicle control |
| CN107200002A (en) * | 2017-07-11 | 2017-09-26 | 安徽合力股份有限公司 | The stopping brake control device and its control method of a kind of electri forklift |
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