CN107097606B - Hybrid power bus air conditioner starting control system and method - Google Patents
Hybrid power bus air conditioner starting control system and method Download PDFInfo
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- CN107097606B CN107097606B CN201710438614.1A CN201710438614A CN107097606B CN 107097606 B CN107097606 B CN 107097606B CN 201710438614 A CN201710438614 A CN 201710438614A CN 107097606 B CN107097606 B CN 107097606B
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- engine
- air conditioner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00371—Air-conditioning arrangements specially adapted for particular vehicles for vehicles carrying large numbers of passengers, e.g. buses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention discloses a hybrid power bus air conditioner starting control system and a method, comprising a starting relay and a control relay; the common end of the starting relay is electrically connected with the starting motor, and the normally open end of the starting relay is electrically connected with the storage battery; one end of a coil of the starting relay is electrically connected with the whole vehicle controller, and the other end of the coil is connected with the whole vehicle framework; the normally closed end of the control relay is electrically connected with the air conditioner control panel, and the common end of the control relay is electrically connected with an air conditioner overhead unit; one end of a coil of the control relay is electrically connected with the whole vehicle controller, and the other end of the coil is connected with the whole vehicle framework; and the air conditioner overhead unit is electrically connected with the compressor. The invention can realize the safe start of the air-conditioning compressor under two states of the stop and the work of the engine, fundamentally avoids the load start of the air-conditioning compressor driven by the engine, realizes the double protection of the engine and improves the reliability of the system.
Description
Technical Field
The invention belongs to the technical field of passenger car air conditioner control, and particularly relates to a hybrid power passenger car air conditioner starting control system and method.
Background
At present, an engine of a traditional fuel gas passenger car is always in a working state after being started, the engine drives a compressor to realize refrigeration after an air conditioner is turned on, a hybrid power passenger car has an idling stop function, the engine can automatically stop after reaching a stop condition in the working process, at the moment, if the air conditioner is turned on, the engine needs to be started first and then the compressor needs to be started, the load starting of the engine driving the air conditioner compressor is avoided, and the reliability of a system is improved.
Disclosure of Invention
The invention aims to provide a hybrid power bus air conditioner starting control system which can realize the safe starting of an air conditioner compressor under two states of engine stopping and working and has the characteristics of simple structure, good reliability, low cost and the like.
The purpose of the invention can be realized by the following technical scheme:
a hybrid power bus air conditioner starting control system comprises a vehicle control unit, an air conditioner control panel, an engine, an air conditioner overhead unit, a compressor, a starting relay, a starting motor, a storage battery and a control relay;
the common end of the starting relay is electrically connected with the starting motor, and the normally open end of the starting relay is electrically connected with the storage battery; one end of a coil of the starting relay is electrically connected with the whole vehicle controller, and the other end of the coil is connected with the whole vehicle framework;
the normally closed end of the control relay is electrically connected with the control panel of the air conditioner, and the public end of the control relay is electrically connected with the overhead unit of the air conditioner; one end of a coil of the control relay is electrically connected with the vehicle controller, and the other end of the coil is connected with the vehicle framework;
the air conditioner overhead unit is electrically connected with the compressor;
and the vehicle control unit is in communication connection with the air conditioner control panel and the engine.
And the vehicle control unit is connected with the air conditioner control panel and the engine through a CAN.
A hybrid power bus air conditioner starting control method comprises the following steps: setting the engine speed as n and the idling speed of the engine as n 0 ；
The vehicle control unit collects refrigeration work request information sent by the air conditioner control panel and engine rotating speed information sent by the engine in real time, and judges the rotating speed of the engine when the refrigeration work request information sent by the air conditioner control paneln and n 0 The relation between the engine speed n and the engine speed n is larger than or equal to n 0 When the engine runs, executing step (1) if the engine speed n<n 0 Executing step (2);
(1) The vehicle control unit sends a compressor working instruction to the air conditioner control panel, the air conditioner control panel receives the information and then outputs a high level signal to the air conditioner overhead unit, and the air conditioner overhead unit controls the compressor to work;
(2) The vehicle control unit outputs a high level signal lasting for 3s to control the actuation of the starting relay to supply the electricity of the storage battery to the starting motor and cut off the normally closed contact of the control relay, simultaneously the vehicle control unit sends an engine speed command, the engine receives the information and then calculates the oil injection quantity and controls the oil injection nozzle to inject oil, the engine is started and maintained at a target speed, and the vehicle control unit further judges the engine speed n and the engine speed n after 5s by taking the time point of outputting the high level signal as a time base point 0 The relation between the engine speed n and the engine speed n is larger than or equal to n 0 When the engine is started successfully, executing step (1); if the engine speed n<n 0 When the engine fails to start, the step (2) is executed.
The invention has the beneficial effects that: the invention can realize the safe start of the air-conditioning compressor under two states of the stop and the work of the engine, fundamentally avoids the load start of the air-conditioning compressor driven by the engine, realizes the double protection of the engine and improves the reliability of the system.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a hybrid power bus air conditioner starting control system;
wherein: 1. the system comprises a vehicle control unit, 2, an air conditioner control panel, 3, an engine, 4, an air conditioner overhead unit, 5, a compressor, 6, a starting relay, 7, a starting motor, 8, a storage battery and 9 control relays.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a hybrid electric vehicle air conditioner start control system, as shown in fig. 1, the control system comprising: the system comprises a vehicle control unit 1, an air conditioner control panel 2, an engine 3, an air conditioner overhead unit 4, a compressor 5, a starting relay 6, a starting motor 7, a storage battery 8 and a control relay 9;
the normally closed end of the control relay 9 is electrically connected with the air conditioner control panel 2, and the common end of the control relay 9 is electrically connected with the air conditioner overhead unit 4; one end of a coil of the control relay 9 is electrically connected with the vehicle controller 1, and the other end of the coil is connected with a vehicle framework;
the air conditioner overhead unit 4 is electrically connected with the compressor 5;
the common end of the starting relay 6 is electrically connected with a starting motor 7, and the normally open end of the starting relay 6 is electrically connected with a storage battery 8; one end of a coil of the starting relay 6 is electrically connected with the vehicle controller 1, and the other end of the coil is connected with a vehicle framework;
the air conditioner control panel 2 is in communication connection with the vehicle control unit 1 and the engine 3, preferably, the connection is achieved through a CAN.
The working mode of the invention is as follows: the vehicle control unit 1 receives a refrigerating work request signal of the air conditioner control panel 2 and an engine rotating speed signal of the engine 3, CAN judge the state of the engine 3 according to the magnitude relation between the rotating speed of the engine and the idling rotating speed, starts the engine firstly if the engine 3 stops, controls an output signal of the air conditioner control panel 2 through CAN communication when the engine 3 is ensured to be in a working state, and then controls the start and stop of the compressor 5 through the air conditioner overhead unit 4.
In the practical application of the hybrid passenger car, the control method of the control system comprises the following steps:
setting the engine speed as n and the idling speed of the engine as n 0 ；
The vehicle control unit collects refrigeration work request information sent by the air conditioner control panel and engine rotating speed information sent by the engine in real time, and judges the rotating speeds n and n of the engine when the refrigeration work request information sent by the air conditioner control panel 0 If the engine speed n is not less than n 0 When the engine is running, the step (1) is executedSpeed n<n 0 Executing step (2);
(1) The vehicle control unit sends a compressor working instruction to the air conditioner control panel, the air conditioner control panel receives the information and then outputs a high level signal to the air conditioner overhead unit, and the air conditioner overhead unit controls the compressor to work;
(2) The vehicle control unit outputs a high level signal lasting for 3s to control the actuation of the starting relay to supply the electricity of the storage battery to the starting motor and cut off the normally closed contact of the control relay, simultaneously the vehicle control unit sends an engine speed command, the engine receives the information and then calculates the oil injection quantity and controls the oil injection nozzle to inject oil to realize the starting of the engine and maintain the target speed, and the vehicle control unit further judges the engine speed n and the engine speed n after 5s by taking the time when the high level signal is output as a time base point 0 If the engine speed n is not less than n 0 When the engine is started successfully, executing step (1); if the engine speed n<n 0 When the engine fails to start, the step (2) is executed.
Specifically, the method comprises the following steps: when the rotating speed of the engine is more than or equal to the idling rotating speed, the vehicle control unit considers that the engine is in a working state and sends a compressor working instruction to the air conditioner control panel through the CAN line, the air conditioner control panel receives the information and then outputs a high-level signal to the air conditioner overhead unit, the air conditioner overhead unit receives the signal and then supplies power to the compressor clutch, the clutch is closed, and the compressor CAN be driven by the engine to work, so that the refrigeration cycle is realized;
when the rotating speed of the engine is less than the idling rotating speed, the vehicle control unit considers that the engine is in a stop state, the vehicle control unit continuously outputs a 3-second high-level signal to control a starting relay to pull in, so that the electricity of a storage battery is supplied to a starting motor to start the engine, a normally closed contact of a control relay is cut off, meanwhile, the vehicle control unit sends an engine rotating speed torque command through a CAN line, and the engine calculates the oil injection quantity and controls an oil injection nozzle to inject oil after receiving the information, so that the engine is started and is maintained at the target rotating speed; the whole vehicle controller judges the sizes of the engine rotating speed and the engine idling rotating speed collected after 5 seconds by taking the time of outputting the high-level signal as a time base point, if the engine rotating speed is greater than or equal to the idling rotating speed, the engine is successfully started, step playing (1) is executed, and if the engine rotating speed is less than the idling rotating speed, the engine is failed to start, and step playing (2) is executed;
the scheme realizes the safe starting of the air-conditioning compressor under two states of the engine stopping and the working according to the refrigeration work request information and the engine rotating speed information, fundamentally avoids the load starting of the air-conditioning compressor driven by the engine, realizes the double protection of the engine and improves the reliability of the system.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (2)
1. A hybrid power bus air conditioner starting control system is characterized by comprising a vehicle control unit (1), an air conditioner control panel (2), an engine (3), an air conditioner overhead unit (4), a compressor (5), a starting relay (6), a starting motor (7), a storage battery (8) and a control relay (9);
the common end of the starting relay (6) is electrically connected with the starting motor (7), and the normally open end of the starting relay (6) is electrically connected with the storage battery (8); one end of a coil of the starting relay (6) is electrically connected with the whole vehicle controller (1), and the other end of the coil is connected with a whole vehicle framework;
the normally closed end of the control relay (9) is electrically connected with the air conditioner control panel (2), and the common end of the control relay (9) is electrically connected with the air conditioner overhead unit (4); one end of a coil of the control relay (9) is electrically connected with the whole vehicle controller (1), and the other end of the coil is connected with a whole vehicle framework;
the air conditioner overhead unit (4) is electrically connected with the compressor (5);
the vehicle control unit (1) is in communication connection with the air conditioner control panel (2) and the engine (3);
the method for controlling the starting of the air conditioner of the hybrid power bus comprises the following stepsThe method comprises the following steps: setting the engine speed as n and the idling speed of the engine as n 0 ；
The vehicle control unit collects refrigeration work request information sent by the air conditioner control panel and engine rotating speed information sent by the engine in real time, and when the refrigeration work request information sent by the air conditioner control panel is detected, engine rotating speeds n and n are judged 0 If the engine speed n is not less than n 0 When the engine runs, executing step (1) if the engine speed n<n 0 Executing step (2);
(1) The vehicle control unit sends a compressor working instruction to the air conditioner control panel, the air conditioner control panel receives the information and then outputs a high level signal to the air conditioner overhead unit, and the air conditioner overhead unit controls the compressor to work;
(2) The vehicle control unit outputs a high level signal lasting for 3s to control the actuation of the starting relay to supply the electricity of the storage battery to the starting motor and cut off the normally closed contact of the control relay, simultaneously the vehicle control unit sends an engine speed command, the engine receives the information and then calculates the oil injection quantity and controls the oil injection nozzle to inject oil, the engine is started and maintained at a target speed, and the vehicle control unit further judges the engine speed n and the engine speed n after 5s by taking the time point of outputting the high level signal as a time base point 0 If the engine speed n is not less than n 0 When the engine is started successfully, executing step (1); if the engine speed n<n 0 When the engine fails to start, the step (2) is executed.
2. The air-conditioning starting control system of the hybrid electric bus according to claim 1, characterized in that the vehicle control unit (1) is connected with the air-conditioning control panel (2) and the engine (3) in a CAN manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438614.1A CN107097606B (en) | 2017-06-12 | 2017-06-12 | Hybrid power bus air conditioner starting control system and method |
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| CN201710438614.1A CN107097606B (en) | 2017-06-12 | 2017-06-12 | Hybrid power bus air conditioner starting control system and method |
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| CN107097606A CN107097606A (en) | 2017-08-29 |
| CN107097606B true CN107097606B (en) | 2023-03-28 |
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| CN107097606A (en) | 2017-08-29 |
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