CN101734210B - Coach air conditioner control system and method - Google Patents
Coach air conditioner control system and method Download PDFInfo
- Publication number
- CN101734210B CN101734210B CN2009101131042A CN200910113104A CN101734210B CN 101734210 B CN101734210 B CN 101734210B CN 2009101131042 A CN2009101131042 A CN 2009101131042A CN 200910113104 A CN200910113104 A CN 200910113104A CN 101734210 B CN101734210 B CN 101734210B
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- air
- air conditioner
- rotating speed
- conditioning
- driving engine
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Abstract
The invention discloses a coach air conditioner control method, comprising the flowing steps of: (1) calculating power consumptions of an air conditioner and all other electrical appliances on a coach, and calculating power productions of a generator at different rotating speeds; (2) sampling real rotating speed of a motor; if the real rotating speed is low, controlling the air conditioner to enter an automatic control mode, and adjusting the power consumption of the air conditioner in real time according to the rotating speeds of the motor and ensuring that the power production of the generator is not less than the sum of the consumptions of the air conditioner and all other electrical appliances; and if the real rotating speed of the motor is high, controlling the air conditioner to enter a panel operation mode. By the relation between the rotating speed of the motor and the power production of the generator, the invention controls the power consumption of the air conditioner by using the rotating speed of the motor and can effectively ensure that the power production of the generator is higher than the power consumption of all the electrical appliances on the coach, ensure that a storage battery is not lack of power and prolong the service life of the storage battery. The invention also discloses a coach air conditioner control system using the method.
Description
Technical field
The invention belongs to the coach air conditioner technical field, particularly a kind of control method and system that controls coach air conditioner work.
Background technology
The electric equipment that adds on the passenger vehicle is more and more complete at present, and function also becomes increasingly abundant, because the operating characteristic of bus driving, the working power of electric equipment is all provided by the storage battery that passenger vehicle carries, and the electric weight of this storage battery stored comes from the operation of driving engine.In the way of travelling, when the rotating speed of driving engine hangs down, the output out of reach rating horsepower of electrical generator, particularly when the electrical generator idling, half of the too late rating horsepower of the horsepower output of electrical generator, when coach air conditioner and the complete shared storage battery of vehicular electrical appliance, because the consumption of current of air-conditioning is very big, electrical generator can't satisfy the need for electricity of a/c system, if this moment, the driver used air-conditioning, will cause discharged or defective battery, if power shortage overlong time, will exhaust the electric weight of storage battery, vehicle can't be started, and have a strong impact on the life-span of storage battery.
Therefore, the inventor is devoted to study the electric weight of passenger vehicle electrical generator generation in use and the relation between the consumption of current, and makes it to reach a kind of balance, and this case produces thus.
Summary of the invention
Main purpose of the present invention is to provide a kind of coach air conditioner control system and control method, and it can guarantee effectively that the electric energy generated of electrical generator is higher than the power consumption of all electric equipmenies on the passenger vehicle, guarantees not power shortage of storage battery, prolongs its service life.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of coach air conditioner control system, comprise air-conditioner ECU and CAN bus, air-conditioner ECU is connected with Engine ECU by the CAN bus, described air-conditioner ECU comprises CAN transceiver, CAN controller, microprocessor and control interface, the CAN transceiver receives the tach signal of Engine ECU by the driving engine of CAN bus transmission, send into microprocessor via the CAN controller, the rotating speed state of microprocessor judges driving engine this moment, and when low-speed running, enter automatic control mode by control interface control air-conditioning.
Above-mentioned control interface is arranged on the guidance panel of air-conditioning.
A kind of control method of coach air conditioner may further comprise the steps: (1) calculates the power consumption of air-conditioning and other all current consumers on the passenger vehicle, and calculating generator is under different rotating speeds, the pairing electric energy generated of electrical generator; (2) actual speed of sampling driving engine, if rotating speed is lower, the control air-conditioning enters automatic control mode, according to the power consumption of the rotating speed real-time regulated air-conditioning of driving engine, and guarantees " electric energy generated of electrical generator 〉=idle call electric weight+other all current consumer power consumptions "; If the rotating speed of driving engine is higher, then controls air-conditioning and enter the panel operation mode.
In the above-mentioned steps (1), on calculating passenger vehicle, during the power consumption of other all current consumers, be divided into two kinds of situations of day and night.
After adopting such scheme, the present invention is by the rotating speed of setting up driving engine, the electric energy generated of electrical generator and the relation between the passenger vehicle total electricity consumption, when the rotating speed of driving engine hangs down, the control air-conditioning work is in the low power consumption mode of operation, make the electric energy generated of electrical generator be higher than the total electricity consumption of electric equipment on the passenger vehicle all the time, fully guarantee the normal operation of other current consumer on the passenger vehicle, can avoid storage battery to cause power shortage simultaneously again because of the overload power supply, guarantee the normal operation of passenger vehicle, prolong the service life of storage battery.
Description of drawings
Fig. 1 is a control flow chart of the present invention;
Fig. 2 is the characteristic curve of employed certain model electrical generator among the present invention;
Fig. 3 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and the specific embodiments content of the present invention and beneficial effect are described in detail.
At first, the invention provides a kind of control method of coach air conditioner, comprise the steps: with reference to shown in Figure 1
(1) power consumption of air-conditioning and the power consumption of other all current consumers except that air-conditioning on the calculating passenger vehicle, because the use of some current consumer has it period on the passenger vehicle, therefore can divide the period when the actual computation power consumption calculates respectively, in general, the difference of power consumption is mainly reflected in day and night, and can open headlight and lampet because illumination needs night, therefore the power consumption at night can be big, therefore can calculate power consumption respectively according to day and night;
(2) calculation engine is under different rotating speeds, the pairing different electric energy generated of electrical generator, can be simultaneously with reference to shown in Figure 2, it is the characteristic curve of being drawn at certain the model electrical generator that uses in the present embodiment, can intuitively find out thus, before electrical generator arrived output rating, its electric energy generated increased along with the increase of engine speed, can draw the corresponding relation between the rotating speed of the electric energy generated of electrical generator and driving engine thus;
(3) actual speed of sampling driving engine, and judge that it is to be in lower-speed state or high speed state, thereby can judge this moment electrical generator electric energy generated what, if the rotating speed of driving engine is lower, then control air-conditioning and enter automatic control mode, the rotating speed of the driving engine that obtain according to real-time sampling this moment is regulated the power consumption of air-conditioning, guarantees: the electric energy generated of electrical generator 〉=idle call electric weight+other all current consumer power consumptions, and this moment, the operator can't set the mode of operation of air-conditioning; If the rotating speed of driving engine is higher, then controls air-conditioning and enter the panel operation mode, according to the setting operation of operator on guidance panel.
Please refer to shown in Figure 3 again, it is a kind of coach air conditioner control system that the present invention discloses, it comprises air-conditioner ECU 1 and CAN bus 2, wherein, air-conditioner ECU 1 comprises CAN transceiver 11, CAN controller 12, microprocessor 13 and control interface 14, and in the present embodiment, CAN controller 12 is selected PHILIPS 82C200 for use, CAN transceiver 11 is selected PHI LIPS TJA1040 for use, and adopts the communications protocol of SAE J1939 as the CAN bus.
CAN transceiver 11 is connected with Engine ECU 3 by CAN bus 2, and reception is from the tach signal of Engine ECU 3, this tach signal is sent into microprocessor 13 via CAN controller 12, judge the rotating speed state of driving engine this moment again by microprocessor 13, mode of operation according to aforementioned control method control air-conditioning, when judging time of engine low speed, enter automatic control mode by the control interface 14 control air-conditionings that are arranged on the air-conditioning guidance panel, this moment, air-conditioning will be with less power modes work, the refrigerating capacity of air-conditioning is less, if want to strengthen the refrigerating capacity of air-conditioning, the driver must improve the rotating speed of driving engine.
In sum, a kind of coach air conditioner control system of the present invention and control method, focus on the rotating speed of real-time sampling driving engine, and control the mode of operation of air-conditioning according to the rotating speed (also being the electric energy generated of electrical generator) of driving engine, hour reduce the power consumption of air-conditioning at electric energy generated, decide the power consumption of air-conditioning, guarantee that the electric weight of storage battery can not used up by the rotating speed of driving engine, prevent the appearance of power shortage situation, improve the reliability of passenger vehicle.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of being done on the technical scheme basis all falls within the protection domain of the present invention.
Claims (4)
1. coach air conditioner control system, it is characterized in that: comprise air-conditioner ECU and CAN bus, air-conditioner ECU is connected with Engine ECU by the CAN bus, described air-conditioner ECU comprises the CAN transceiver, the CAN controller, microprocessor and control interface, the CAN transceiver receives the tach signal of Engine ECU by the driving engine of CAN bus transmission, send into microprocessor via the CAN controller, the rotating speed state of microprocessor judges driving engine this moment, and when low-speed running, enter automatic control mode by control interface control air-conditioning, according to the power consumption of the rotating speed real-time regulated air-conditioning of driving engine, and guarantee " electric energy generated of electrical generator 〉=idle call electric weight+other all current consumer power consumptions ".
2. coach air conditioner control system as claimed in claim 1 is characterized in that: described control interface is arranged on the guidance panel of air-conditioning.
3. control method of using coach air conditioner control system as claimed in claim 1 is characterized in that may further comprise the steps:
(1) calculate the power consumption of air-conditioning and other all current consumers on the passenger vehicle, and calculating generator is under different rotating speeds, the pairing electric energy generated of electrical generator;
(2) actual speed of sampling driving engine, if rotating speed is lower, the control air-conditioning enters automatic control mode, according to the power consumption of the rotating speed real-time regulated air-conditioning of driving engine, and guarantees " electric energy generated of electrical generator 〉=idle call electric weight+other all current consumer power consumptions "; If the rotating speed of driving engine is higher, then controls air-conditioning and enter the panel operation mode.
4. the control method of coach air conditioner control system as claimed in claim 3 is characterized in that: in the described step (1), during the power consumption of other all current consumers, be divided into two kinds of situations of day and night on calculating passenger vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101131042A CN101734210B (en) | 2009-12-24 | 2009-12-24 | Coach air conditioner control system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101131042A CN101734210B (en) | 2009-12-24 | 2009-12-24 | Coach air conditioner control system and method |
Publications (2)
Publication Number | Publication Date |
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CN101734210A CN101734210A (en) | 2010-06-16 |
CN101734210B true CN101734210B (en) | 2011-05-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009101131042A Expired - Fee Related CN101734210B (en) | 2009-12-24 | 2009-12-24 | Coach air conditioner control system and method |
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CN (1) | CN101734210B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012038040A (en) * | 2010-08-05 | 2012-02-23 | Auto Network Gijutsu Kenkyusho:Kk | Processing system, processing unit, and power supply control method |
CN103608568B (en) * | 2011-07-04 | 2016-03-09 | 丰田自动车株式会社 | The control gear of vehicle |
CN102506021B (en) * | 2011-11-11 | 2015-02-18 | 郑州宇通客车股份有限公司 | Control device and method for air-conditioning compressor of low-displacement automobile |
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2009
- 2009-12-24 CN CN2009101131042A patent/CN101734210B/en not_active Expired - Fee Related
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Granted publication date: 20110518 Termination date: 20211224 |