CN107965433B - Air compressor control mechanism and control method thereof - Google Patents
Air compressor control mechanism and control method thereof Download PDFInfo
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- CN107965433B CN107965433B CN201711464834.8A CN201711464834A CN107965433B CN 107965433 B CN107965433 B CN 107965433B CN 201711464834 A CN201711464834 A CN 201711464834A CN 107965433 B CN107965433 B CN 107965433B
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- air compressor
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0015—Transmission control for optimising fuel consumptions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Computer Hardware Design (AREA)
- Control Of Transmission Device (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model provides an air compressor control system, includes air compressor, engine, the speed change mechanism who is used for adjusting air compressor rotational speed, speed change mechanism's input shaft passes through clutch and the output shaft transmission cooperation of engine, speed change mechanism's output shaft and air compressor transmission cooperation, clutch, speed change mechanism's control end and ECU electrical control unit signal connection, and ECU electrical control unit and VECU whole car controller signal connection, its control method does: the ECU controls the speed change mechanism to shift according to the received command from the VECU whole vehicle controller and the state of the clutch and the speed change mechanism, and then the speed change mechanism drives the air compressor to operate so as to obtain the target compressed air quantity. The design can not only meet the requirements of the truck on braking effect and arrangement space, but also improve the dynamic property and fuel economy of the vehicle.
Description
Technical Field
The invention belongs to the technical field of engine braking, and particularly relates to an air compressor control mechanism and a control method thereof, which are suitable for simultaneously meeting the requirements of a truck on braking effect and arrangement space.
Background
While road vehicles usually require frequent active deceleration during driving, most of the current road vehicles use air compressors directly connected to the engine. Chinese patent: the invention patent with the application publication number of CN102616135A and the application publication date of 2012, 8 and 1 discloses a vehicle starting braking system, wherein a clutch and a belt pulley are arranged on a main shaft between an engine and a gearbox, the belt pulley is connected with a belt pulley of an air compressor through a belt, another clutch is arranged between the belt pulley of the air compressor and a crankshaft, an air outlet of the air compressor is connected with an air filtering device, and an outlet of the air filtering device is connected with a steel cylinder. In the system, when the air compressor works, the rotating speed of the air compressor is kept relatively consistent with the rotating speed of an engine, the rotating speed of the air compressor is high when the rotating speed of the engine is high, the obtained air compressor is large in exhaust quantity, the rotating speed of the air compressor is low when the rotating speed of the engine is low, the obtained air compressor is small in exhaust quantity, and if continuous braking is adopted, the air pressure in an air storage cylinder is rapidly reduced. Therefore, in order to ensure that the air reservoir has sufficient compressed air to ensure a second braking effect within a short period of time after the driver applies a service brake, it is common to increase the volume of the air reservoir to ensure the backup compressed air. However, the existing trucks, especially tractors, have short wheelbase, and the increase of the volume of the air reservoir can cause the arrangement of other components such as the oil tanks on both sides of the frame to be affected, so that the requirements of braking effect and arrangement space cannot be met at the same time. Meanwhile, the air compressor can continuously consume engine energy in the continuous braking process, and the dynamic property and the fuel economy of the vehicle are affected.
Disclosure of Invention
The invention aims to solve the problem that the braking effect and the arrangement space requirement cannot be met simultaneously in the prior art, and provides an air compressor control mechanism and a control method thereof which can meet the braking effect and the arrangement space requirement simultaneously.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the air compressor control mechanism comprises an air compressor and an engine, wherein the engine is in transmission fit with the air compressor through a clutch;
the mechanism further comprises a speed change mechanism for adjusting the rotating speed of the air compressor, an input shaft of the speed change mechanism is in transmission fit with an output shaft of the engine through a clutch, an output shaft of the speed change mechanism is in transmission fit with the air compressor, control ends of the clutch and the speed change mechanism are connected with an ECU (electronic control unit) in a signal mode, and the ECU is connected with a VECU whole vehicle controller in a signal mode.
The speed change mechanism is a three-gear speed change mechanism and comprises an H gear, an L gear and an N gear;
when the speed change mechanism is in the H gear, the rotating speed of the air compressor is larger than a;
when the speed change mechanism is in the L gear, the rotating speed of the air compressor is a;
when the speed change mechanism is in N gear, the rotating speed of the air compressor is 0;
the a is a rotating speed value when the air compressor is connected with the engine gear in the existing state.
The mechanism further comprises a clutch executing mechanism connected with the clutch and a gear shifting executing mechanism connected with the speed changing mechanism, and control ends of the clutch executing mechanism and the gear shifting executing mechanism are connected with the ECU through signals.
A control method of an air compressor control mechanism, the method comprising: the ECU controls the speed change mechanism to shift according to the received command from the VECU whole vehicle controller and the state of the clutch and the speed change mechanism, and then the speed change mechanism drives the air compressor to operate so as to obtain the target compressed air quantity.
The speed change mechanism is a three-gear speed change mechanism and comprises an H gear, an L gear and an N gear;
when the speed change mechanism is in the H gear, the rotating speed of the air compressor is larger than a;
when the speed change mechanism is in the L gear, the rotating speed of the air compressor is a;
when the speed change mechanism is in N gear, the rotating speed of the air compressor is 0;
the method comprises the following steps that a is a rotating speed value when an air compressor is connected with an engine gear in the existing state;
the mechanism further comprises a clutch executing mechanism connected with the clutch and a gear shifting executing mechanism connected with the speed changing mechanism, wherein the control ends of the clutch executing mechanism and the gear shifting executing mechanism are connected with the ECU through signals;
in the control method, the ECU controls the gear shifting mechanism to shift according to the received command from the VECU whole vehicle controller and the state of the clutch and the gear shifting mechanism:
when the ECU receives a rapid inflation instruction from the VECU whole vehicle controller, if the ECU judges that the clutch is in a combined state and the speed change mechanism is in an H gear, the clutch executing mechanism and the gear shifting executing mechanism do not execute any operation, if the ECU judges that the speed change mechanism is in an N gear or an L gear, the ECU controls the clutch executing mechanism to execute the operation of clutch separation, after the clutch is in a separation state, the ECU controls the gear shifting executing mechanism to execute the operation of gear shifting of the gear shifting executing mechanism, and finally, the ECU controls the clutch executing mechanism to execute the operation of clutch combination;
when the ECU receives a slow inflation instruction from the VECU whole vehicle controller, if the ECU judges that the clutch is in a combined state and the speed change mechanism is in an L gear, the clutch executing mechanism and the gear shifting executing mechanism do not execute any operation, if the ECU judges that the speed change mechanism is in an N gear or an H gear, the ECU controls the clutch executing mechanism to execute the operation of clutch separation, after the clutch is in a separation state, the ECU controls the gear shifting executing mechanism to execute the operation of gear shifting of the gear shifting mechanism, and finally, the ECU controls the clutch executing mechanism to execute the operation of clutch combination;
when the ECU receives a stop inflation instruction from the VECU whole vehicle controller, if the ECU judges that the clutch is in a combined state and the speed change mechanism is in N gear, the clutch executing mechanism and the gear shifting executing mechanism do not execute any operation, if the ECU judges that the speed change mechanism is in L gear or H gear, the ECU controls the clutch executing mechanism to execute the operation of clutch separation, after the clutch is in a separation state, the ECU controls the gear shifting executing mechanism to execute the operation of gear shifting mechanism to be in N gear, and finally, the ECU controls the clutch executing mechanism to execute the operation of clutch combination.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to an air compressor control mechanism, which comprises a speed change mechanism for adjusting the rotation speed of an air compressor, wherein an input shaft of the speed change mechanism is in transmission fit with an output shaft of an engine through a clutch, an output shaft of the speed change mechanism is in transmission fit with the air compressor, control ends of the clutch and the speed change mechanism are connected with an ECU (electronic control unit) in a signal mode, and the ECU is connected with a VECU whole vehicle controller in a signal mode. Therefore, the invention can meet the requirements of braking effect and arrangement space at the same time.
2. The invention relates to a speed change mechanism in an air compressor control mechanism, which comprises an H gear, an L gear and an N gear, when an ECU (electronic control unit) receives a rapid inflation instruction from a VECU whole vehicle controller, the speed change mechanism is controlled to be in gear shift, so that the air compressor obtains a rotating speed which is larger than that when the air compressor is connected with an engine gear in the existing state, the exhaust quantity of the air compressor is increased, and when the ECU receives an inflation stopping instruction from the VECU whole vehicle controller, the ECU controls the speed change mechanism to be in gear shift, so that the air compressor stops running. Therefore, the invention not only can provide sufficient compressed air, but also improves the dynamic property and the fuel economy of the whole vehicle.
Drawings
Fig. 1 is a schematic structural diagram of the mechanism of the present invention.
In the figure: the vehicle control system comprises an air compressor 1, an engine 2, a clutch 3, a speed change mechanism 4, an ECU (electronic control unit) 5, a clutch executing mechanism 6, a gear shifting executing mechanism 7 and a VECU (vehicle control unit) 8.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Referring to fig. 1, an air compressor control mechanism comprises an air compressor 1 and an engine 2, wherein the engine 2 is in transmission fit with the air compressor 1 through a clutch 3;
the mechanism further comprises a speed change mechanism 4 for adjusting the rotating speed of the air compressor 1, an input shaft of the speed change mechanism 2 is in transmission fit with an output shaft of the engine 2 through a clutch 3, an output shaft of the speed change mechanism 4 is in transmission fit with the air compressor 1, control ends of the clutch 3 and the speed change mechanism 4 are connected with an ECU (electronic control unit) 5 in a signal mode, and the ECU 5 is connected with a VECU whole vehicle controller 8 in a signal mode.
The speed change mechanism 4 is a three-gear speed change mechanism and comprises an H gear, an L gear and an N gear;
when the speed change mechanism 4 is in the H gear, the rotating speed of the air compressor 1 is larger than a;
when the speed change mechanism 4 is in the L gear, the rotating speed of the air compressor 1 is a;
when the speed change mechanism 4 is in N gear, the rotating speed of the air compressor 1 is 0;
wherein a is a rotation speed value when the air compressor 1 is connected with the engine 2 through a gear in the existing state.
The mechanism further comprises a clutch actuating mechanism 6 connected with the clutch 3 and a gear shifting actuating mechanism 7 connected with the speed change mechanism 4, and control ends of the clutch actuating mechanism 6 and the gear shifting actuating mechanism 7 are respectively connected with the ECU electronic control unit 5 in a signal mode.
A control method of an air compressor control mechanism, the method comprising: the ECU electric control unit 5 firstly controls the gear shifting mechanism 4 to shift according to the received command from the VECU whole vehicle controller 8 and the state of the clutch 3 and the gear shifting mechanism 4, and then the gear shifting mechanism 4 drives the air compressor 1 to operate so as to obtain the target compressed air quantity.
The speed change mechanism 4 is a three-gear speed change mechanism and comprises an H gear, an L gear and an N gear;
when the speed change mechanism 4 is in the H gear, the rotating speed of the air compressor 1 is larger than a;
when the speed change mechanism 4 is in the L gear, the rotating speed of the air compressor 1 is a;
when the speed change mechanism 4 is in N gear, the rotating speed of the air compressor 1 is 0;
wherein, a is the rotation speed value when the air compressor 1 is connected with the engine 2 through a gear in the existing state;
the mechanism further comprises a clutch executing mechanism 6 connected with the clutch 3 and a gear shifting executing mechanism 7 connected with the speed changing mechanism 4, wherein the control ends of the clutch executing mechanism 6 and the gear shifting executing mechanism 7 are respectively connected with the ECU electronic control unit 5 through signals;
in the control method, the ECU electronic control unit 5 controls the gear shifting mechanism 4 to shift according to the received command from the VECU whole vehicle controller 8 and the state of the clutch 3 and the gear shifting mechanism 4, which means that:
when the ECU electric control unit 5 receives a quick inflation instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in an H gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in an N gear or an L gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of shifting the speed change mechanism 4 into the H gear, and finally, the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3;
when the ECU electric control unit 5 receives a slow inflation instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in an L gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in an N gear or an H gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of hanging the speed change mechanism 4 in the L gear, and finally the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3;
when the ECU electric control unit 5 receives the inflation stopping instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in N gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in L gear or H gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of engaging the speed change mechanism 4 in N gear, and finally the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3.
The principle of the invention is explained as follows:
the invention ensures that the air pressure in the air reservoir can be rapidly increased after the service brake is used for multiple times by adding the speed change mechanism 4 between the air compressor 1 and the engine 2.
Speed change mechanism 4:
the speed change mechanism 4 is divided into three gears:
h gear: the air compressor 1 obtains higher rotating speed and larger exhaust quantity, and the gear is adopted when the vehicle runs down a long slope;
l gear: the air compressor 1 obtains the rotating speed connected with the gear of the engine 2 (the speed ratio of the two is a constant value), obtains the normal exhaust amount, and adopts the gear when the vehicle is on a flat slope or a long-slope;
n grade: i.e. neutral gear, the air compressor 1 is stopped and this gear is used when the air pressure in the air reservoir reaches the set value.
Example 1:
referring to fig. 1, an air compressor control mechanism comprises an air compressor 1, an engine 2, a clutch 3, a speed change mechanism 4 for adjusting the rotation speed of the air compressor 1, a clutch actuating mechanism 6 connected with the clutch 3, and a gear shifting actuating mechanism 7 connected with the speed change mechanism 4, wherein an input shaft of the speed change mechanism 2 is in transmission fit with an output shaft of the engine 2, an output shaft of the speed change mechanism 4 is in transmission fit with the air compressor 1, control ends of the clutch 3, the speed change mechanism 4, the clutch actuating mechanism 6 and the gear shifting actuating mechanism 7 are all in signal connection with an ECU (electronic control unit) 5, the ECU electronic control unit 5 is in signal connection with a VECU (vehicle control unit) 8, and the speed change mechanism 4 is a three-gear speed change mechanism comprising an H gear, an L gear and an N gear;
when the speed change mechanism 4 is in the H gear, the rotating speed of the air compressor 1 is larger than a;
when the speed change mechanism 4 is in the L gear, the rotating speed of the air compressor 1 is a;
when the speed change mechanism 4 is in N gear, the rotating speed of the air compressor 1 is 0;
wherein a is a rotation speed value when the air compressor 1 is connected with the engine 2 through a gear in the existing state.
A control method of an air compressor control mechanism, the method comprising: the ECU electronic control unit 5 firstly controls the gear shifting mechanism 4 to shift according to the received command from the VECU whole vehicle controller 8 and the state of the clutch 3 and the gear shifting mechanism 4, and then the gear shifting mechanism 4 drives the air compressor 1 to operate so as to obtain the target compressed air amount, wherein the ECU electronic control unit 5 controls the gear shifting mechanism 4 to shift according to the received command from the VECU whole vehicle controller 8 and the state of the clutch 3 and the gear shifting mechanism 4 means that:
when the ECU electric control unit 5 receives a quick inflation instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in an H gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in an N gear or an L gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of shifting the speed change mechanism 4 into the H gear, and finally, the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3;
when the ECU electric control unit 5 receives a slow inflation instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in an L gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in an N gear or an H gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of hanging the speed change mechanism 4 in the L gear, and finally the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3;
when the ECU electric control unit 5 receives the inflation stopping instruction from the VECU whole vehicle controller 8, if the ECU electric control unit 5 judges that the clutch 3 is in a combined state and the speed change mechanism 4 is in N gear, the clutch executing mechanism 6 and the gear shifting executing mechanism 7 do not execute any operation, if the ECU electric control unit 5 judges that the speed change mechanism 4 is in L gear or H gear, the clutch executing mechanism 6 is controlled to execute the operation of separating the clutch 3, after the clutch 3 is in a separated state, the ECU electric control unit 5 controls the gear shifting executing mechanism 7 to execute the operation of engaging the speed change mechanism 4 in N gear, and finally the ECU electric control unit 5 controls the clutch executing mechanism 6 to execute the operation of combining the clutch 3.
Claims (1)
1. A control method of an air compressor control mechanism, characterized by:
the air compressor control mechanism comprises an air compressor (1), an engine (2), a speed change mechanism (4) for adjusting the rotating speed of the air compressor (1), a clutch actuating mechanism (6) connected with a clutch (3) and a gear shifting actuating mechanism (7) connected with the speed change mechanism (4), wherein the engine (2) is in transmission fit with the air compressor (1) through the clutch (3), an input shaft of the speed change mechanism (4) is in transmission fit with an output shaft of the engine (2) through the clutch (3), an output shaft of the speed change mechanism (4) is in transmission fit with the air compressor (1), the clutch (3), the speed change mechanism (4), the clutch actuating mechanism (6) and a control end of the gear shifting actuating mechanism (7) are in signal connection with an ECU (5), and the ECU (5) is in signal connection with a VECU whole vehicle controller (8);
the speed change mechanism (4) is a three-gear speed change mechanism and comprises an H gear, an L gear and an N gear;
when the speed change mechanism (4) is in the H gear, the rotating speed of the air compressor (1) is larger than a;
when the speed change mechanism (4) is in the L gear, the rotating speed of the air compressor (1) is a;
when the speed change mechanism (4) is in N gear, the rotating speed of the air compressor (1) is 0;
wherein a is a rotating speed value when the air compressor (1) is connected with the engine (2) through a gear in the existing state;
the control method comprises the following steps: the ECU (5) firstly controls the gear shifting mechanism (4) to shift according to the received command from the VECU whole vehicle controller (8), the state of the clutch (3) and the state of the gear shifting mechanism (4), and then the gear shifting mechanism (4) drives the air compressor (1) to operate so as to obtain a target compressed air amount, wherein the ECU (5) controls the gear shifting mechanism (4) to shift according to the received command from the VECU whole vehicle controller (8), the state of the clutch (3) and the state of the gear shifting mechanism (4) means that:
when the ECU (5) receives a rapid inflation instruction from the VECU whole vehicle controller (8), if the ECU (5) judges that the clutch (3) is in a combined state and the speed change mechanism (4) is in an H gear, the clutch executing mechanism (6) and the gear shifting executing mechanism (7) do not execute any operation, if the ECU (5) judges that the speed change mechanism (4) is in an N gear or an L gear, the clutch executing mechanism (6) is controlled to execute the operation of separating the clutch (3), after the clutch (3) is in a separated state, the ECU (5) controls the gear shifting executing mechanism (7) to execute the operation of hanging the gear (4), and finally the ECU (5) controls the clutch executing mechanism (6) to execute the operation of combining the clutch (3);
when the ECU (5) receives a slow inflation instruction from the VECU whole vehicle controller (8), if the ECU (5) judges that the clutch (3) is in a combined state and the speed change mechanism (4) is in L gear, the clutch executing mechanism (6) and the gear shifting executing mechanism (7) do not execute any operation, if the ECU (5) judges that the speed change mechanism (4) is in N gear or H gear, the clutch executing mechanism (6) is controlled to execute the operation of separating the clutch (3), after the clutch (3) is in a separated state, the ECU (5) controls the gear shifting executing mechanism (7) to execute the operation of hanging the gear (4) into L gear, and finally the ECU (5) controls the clutch executing mechanism (6) to execute the operation of combining the clutch (3);
when the ECU (5) receives a stop inflation instruction from the VECU whole vehicle controller (8), if the ECU (5) judges that the clutch (3) is in a combined state and the speed change mechanism (4) is in N gear, the clutch executing mechanism (6) and the gear shifting executing mechanism (7) do not execute any operation, if the ECU (5) judges that the speed change mechanism (4) is in L gear or H gear, the clutch executing mechanism (6) is controlled to execute the operation of separating the clutch (3), after the clutch (3) is in a separated state, the ECU (5) controls the gear shifting executing mechanism (7) to execute the operation of hanging the speed change mechanism (4) in N gear, and finally the ECU (5) controls the clutch executing mechanism (6) to execute the operation of combining the clutch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464834.8A CN107965433B (en) | 2017-12-28 | 2017-12-28 | Air compressor control mechanism and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464834.8A CN107965433B (en) | 2017-12-28 | 2017-12-28 | Air compressor control mechanism and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107965433A CN107965433A (en) | 2018-04-27 |
| CN107965433B true CN107965433B (en) | 2024-03-19 |
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| CN201711464834.8A Active CN107965433B (en) | 2017-12-28 | 2017-12-28 | Air compressor control mechanism and control method thereof |
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| CN107989769A (en) * | 2017-12-28 | 2018-05-04 | 东风商用车有限公司 | Control execution mechanism of air compressor and control execution method thereof |
| CN207974935U (en) * | 2017-12-28 | 2018-10-16 | 东风商用车有限公司 | Control actuating mechanism of air compressor |
| CN208073704U (en) * | 2017-12-28 | 2018-11-09 | 东风商用车有限公司 | Air compressor control mechanism |
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| EP2998581A1 (en) * | 2014-09-22 | 2016-03-23 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Compressor system |
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| CN107965433A (en) | 2018-04-27 |
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