CN110657233A - Working method of vehicle - Google Patents
Working method of vehicle Download PDFInfo
- Publication number
- CN110657233A CN110657233A CN201911056125.5A CN201911056125A CN110657233A CN 110657233 A CN110657233 A CN 110657233A CN 201911056125 A CN201911056125 A CN 201911056125A CN 110657233 A CN110657233 A CN 110657233A
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- Prior art keywords
- electromagnetic valve
- gear
- rotating speed
- communicated
- main controller
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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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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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
- F16H61/22—Locking of the control input devices
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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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4043—Control of a bypass valve
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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
- F16H2306/00—Shifting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A working method of a vehicle comprises a gear selecting operation valve, a forward gear clutch, a reverse gear clutch, a hydraulic pump, an oil tank, a first electromagnetic valve, a second electromagnetic valve, a first pressure sensor, a main controller, a second pressure sensor, a rotating speed sensor and an induction piece; an execution port A of the gear selection operation valve is respectively communicated with a first pressure sensor and an oil inlet of a first electromagnetic valve, an execution port of the first electromagnetic valve is communicated with a forward gear clutch, an execution port B of the gear selection operation valve is respectively communicated with a second pressure sensor and an oil inlet of a second electromagnetic valve, and an execution port of the second electromagnetic valve is communicated with a backward gear clutch; the first electromagnetic valve, the second electromagnetic valve, the first pressure sensor, the second pressure sensor and the rotating speed sensor are electrically connected or wirelessly connected with the main controller. The invention can realize the long service life of the gearbox, the high driving safety and the difficult traffic accident.
Description
Technical Field
The invention relates to a vehicle, in particular to a working method of the vehicle.
Background
After the vehicle is in a forward gear running state, the vehicle is not allowed to be directly switched from the forward gear to a backward gear in the running process; after the vehicle is in a reverse gear running state, the reverse gear is not allowed to be directly switched to a forward gear in the running process of the vehicle, because if the operation is carried out in this way, gears in a gearbox of the vehicle are abraded or broken, the service life of the gearbox of the vehicle is directly influenced, the driving safety is also reduced, and traffic accidents are easy to happen. However, in practice, the situation that the driver mistakenly engages the reverse gear during the running of the vehicle after the vehicle runs in the forward gear or the situation that the driver mistakenly engages the forward gear during the running of the vehicle after the vehicle runs in the reverse gear often occurs.
As shown in fig. 2, the gear shifting device of the vehicle in the prior art includes a gear selecting operation valve 60, a forward gear clutch 61, a reverse gear clutch 62, a hydraulic pump 63 and an oil tank 64, wherein an oil inlet of the hydraulic pump 63 is communicated with the oil tank 64, and an oil outlet of the hydraulic pump 63 is communicated with an oil inlet P of the gear selecting operation valve 60; the gear selection operating valve 60 includes an operating lever 60-1, an execution port a of the gear selection operating valve 60 is communicated with a forward clutch 61, an execution port B of the gear selection operating valve 60 is communicated with a reverse clutch 62, and the operating lever 60-1 of the gear selection operating valve 60 is connected with a gear selector located in a cab through a flexible shaft. When a driver operates a gear selector positioned in a cab to be hung on a forward gear, a flexible shaft drives an operating lever 60-1 of a gear selecting operating valve 60 to move, so that an oil inlet P of the gear selecting operating valve 60 is communicated with an execution port A, pressure oil in a hydraulic pump 63 enters a forward gear clutch 61, the forward gear clutch 61 is combined, and a vehicle is hung on the forward gear; when the driver operates the gear selector in the cab to be hooked on the reverse gear, the flexible shaft drives the operating lever 60-1 of the gear selecting operating valve 60 to move, so that the oil inlet P of the gear selecting operating valve 60 is communicated with the execution port B, the pressure oil in the hydraulic pump 63 enters the reverse gear clutch 62, the reverse gear clutch 62 is combined, and the vehicle is hooked on the reverse gear. When the driver operates the gear selector of the cab to hang on the neutral gear, the oil inlet P of the gear selecting operation valve 60 is not communicated with the execution port A and the execution port B, the forward gear clutch 61 and the reverse gear clutch 62 are both in a separated state, and the vehicle is hung on the neutral gear.
After a forward gear is engaged to drive, when a driver mistakenly engages a reverse gear in the driving process of a vehicle, the gear device of the vehicle in the prior art can still be directly switched from the forward gear to the reverse gear; after the reverse gear is engaged, when the driver mistakenly engages the forward gear in the running process of the vehicle, the gear device can also be directly switched from the reverse gear to the forward gear. Therefore, the service life of the gearbox of the vehicle is influenced, the driving safety is reduced, and traffic accidents are easy to happen.
Disclosure of Invention
The invention aims to provide a gear locking device of a vehicle, which has the advantages of long service life of a gearbox, high driving safety and difficult traffic accidents.
In order to achieve the purpose, the invention adopts the following technical scheme: a gear locking device of a vehicle comprises a gear selecting operation valve, a forward gear clutch, a reverse gear clutch, a hydraulic pump and an oil tank; an oil inlet of the hydraulic pump is communicated with the oil tank, and an oil outlet of the hydraulic pump is communicated with an oil inlet P of the gear selecting operation valve; the operating lever of the gear selecting operating valve is connected with a gear selector positioned in a cab through a flexible shaft;
the device also comprises a first electromagnetic valve, a second electromagnetic valve, a first pressure sensor, a main controller, a second pressure sensor, a rotating speed sensor and an induction piece; an execution port A of the gear selection operation valve is respectively communicated with a first pressure sensor and an oil inlet P of a first electromagnetic valve, the execution port A of the first electromagnetic valve is communicated with a forward gear clutch, an execution port B of the gear selection operation valve is respectively communicated with a second pressure sensor and the oil inlet P of a second electromagnetic valve, and the execution port A of the second electromagnetic valve is communicated with a reverse gear clutch; the rotating speed sensor corresponds to the sensing piece; the first electromagnetic valve, the second electromagnetic valve, the first pressure sensor, the second pressure sensor and the rotating speed sensor are all electrically connected or wirelessly communicated with the main controller; when the pressure value of the first pressure sensor is greater than the pressure value set in the main controller and the rotating speed value of the rotating speed sensor is greater than the set rotating speed value in the main controller, the main controller controls a terminal K of the second electromagnetic valve to be electrified, and the oil inlet P of the second electromagnetic valve is not communicated with the execution port A; when the pressure value of the second pressure sensor is greater than the pressure value set in the main controller and the rotating speed value of the rotating speed sensor is greater than the set rotating speed value in the main controller, the main controller controls the terminal K of the first electromagnetic valve to be electrified, and the oil inlet P of the first electromagnetic valve is not communicated with the execution port A; when the rotating speed value of the rotating speed sensor is equal to the set rotating speed value in the main controller, the terminal K of the first electromagnetic valve and the terminal K of the second electromagnetic valve are controlled by the main controller to lose power.
Also includes a safety valve; the safety valve is arranged on an oil channel from an oil outlet of the hydraulic pump to the oil tank.
The device also comprises a filter; the filter is arranged on an oil channel from the oil tank to an oil inlet of the hydraulic pump.
The invention has the following positive effects: (1) the execution port A of the gear selecting operation valve is respectively communicated with the first pressure sensor and the oil inlet P of the first electromagnetic valve, the execution port A of the first electromagnetic valve is communicated with the forward gear clutch, the execution port B of the gear selecting operation valve is respectively communicated with the second pressure sensor and the oil inlet P of the second electromagnetic valve, and the execution port A of the second electromagnetic valve is communicated with the reverse gear clutch; the first electromagnetic valve, the second electromagnetic valve, the first pressure sensor, the second pressure sensor and the rotating speed sensor are all electrically connected or wirelessly communicated with the main controller; when the pressure value of the first pressure sensor is larger than the pressure value set in the main controller and the rotating speed value of the rotating speed sensor is larger than the rotating speed value set in the main controller, the main controller controls a terminal K of the second electromagnetic valve to be electrified; when the pressure value of the second pressure sensor is larger than the pressure value set in the main controller and the rotating speed value of the rotating speed sensor is larger than the rotating speed value set in the main controller, the main controller controls the terminal K of the first electromagnetic valve to be electrified; when the rotating speed value of the rotating speed sensor is equal to the set rotating speed value in the main controller, the main controller controls the terminal K of the first electromagnetic valve and the terminal K of the second electromagnetic valve to lose power; when the vehicle is used, the sensing part is fixedly connected to the hub of the wheel of the vehicle, the rotating speed sensor is fixedly connected to the frame of the vehicle, and the sensing parts correspond to each other, so that when the vehicle runs in a forward gear, pressure oil in the hydraulic pump enters the first pressure sensor and the oil inlet P of the first electromagnetic valve, the pressure oil in the hydraulic pump enters the forward gear clutch through the gear selecting operation valve and then enters the first electromagnetic valve, the forward gear clutch is combined, the vehicle is hung on the forward gear, the pressure value of the first pressure sensor is larger than the set pressure value in the main controller, the rotating speed value of the rotating speed sensor is also larger than the set rotating speed value in the main controller, the main controller controls the terminal K of the second electromagnetic valve to be electrified, and the oil inlet P of the second electromagnetic valve is not communicated with the execution port A. In this case, even if the driver erroneously operates the select valve to engage the vehicle in the reverse gear, the pressurized oil in the hydraulic pump cannot enter the reverse gear clutch, that is, the vehicle gear locking device according to the present invention does not cause the vehicle to shift from the forward gear to the reverse gear when the reverse gear is inadvertently engaged while the vehicle is traveling after the vehicle is traveling in the forward gear. When the vehicle runs in a reverse gear, pressure oil in the hydraulic pump enters a second pressure sensor and an oil inlet P of a second electromagnetic valve, the pressure oil in the hydraulic pump enters a reverse gear clutch through a gear selecting operation valve and then enters the second electromagnetic valve, the reverse gear clutch is combined, the vehicle is hung on the reverse gear, at the moment, the pressure value of the second pressure sensor is larger than the set pressure value in the main controller, the rotating speed value of the rotating speed sensor is also larger than the set rotating speed value in the main controller, the main controller controls a terminal K of the first electromagnetic valve to be electrified, and the oil inlet P of the first electromagnetic valve is not communicated with the execution port A. In this case, even if the driver mistakenly operates the gear selection operation valve to cause the vehicle to be in the forward gear, the pressure oil in the hydraulic pump cannot enter the forward gear clutch, namely, after the gear locking device of the vehicle is in the reverse gear running state, when the forward gear is accidentally engaged in the vehicle running process, the vehicle cannot be switched from the reverse gear to the forward gear, so that the service life of the transmission is prolonged, the driving safety is high, and traffic accidents are not easy to happen.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic diagram of a prior art gear device.
The reference numbers in the above figures are as follows: the hydraulic control system comprises a first electromagnetic valve 1, a second electromagnetic valve 2, a first pressure sensor 3, a main controller 4, a second pressure sensor 5, a rotating speed sensor 6, a sensing piece 7, a gear selecting operation valve 60, a control lever 60-1, a forward gear clutch 61, a reverse gear clutch 62, a hydraulic pump 63, an oil tank 64, a safety valve 65 and a filter 66.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the examples given.
As shown in fig. 1, a gear locking apparatus of a vehicle includes a gear selection operation valve 60, a forward clutch 61, a reverse clutch 62, a hydraulic pump 63, and an oil tank 64; an oil inlet of the hydraulic pump 63 is communicated with the oil tank 64, and an oil outlet of the hydraulic pump 63 is communicated with an oil inlet P of the gear selecting operation valve 60; the operating lever 60-1 of the gear selecting operating valve 60 is connected with a gear selector in a cab through a flexible shaft;
the electromagnetic valve further comprises a first electromagnetic valve 1, a second electromagnetic valve 2, a first pressure sensor 3, a main controller 4, a second pressure sensor 5, a rotating speed sensor 6 and a sensing piece 7; the material of the induction part 7 is magnetic steel. The main controller 4 is a PLC, in which the CPU1215C manufactured by siemens is used as the central processing unit. The speed sensor 6 adopts a Hall speed sensor with the model number of WS 1-ZS-6. The first pressure sensor 3 and the second pressure sensor 5 are PPM-242L pressure sensors. An execution port A of the gear selection operation valve 60 is respectively communicated with the first pressure sensor 3 and an oil inlet P of the first electromagnetic valve 1, an execution port A of the first electromagnetic valve 1 is communicated with the forward gear clutch 61, an execution port B of the gear selection operation valve 60 is respectively communicated with the second pressure sensor 5 and an oil inlet P of the second electromagnetic valve 2, and an execution port A of the second electromagnetic valve 2 is communicated with the reverse gear clutch 62; the rotating speed sensor 6 corresponds to the sensing piece 7; the first electromagnetic valve 1, the second electromagnetic valve 2, the first pressure sensor 3, the second pressure sensor 5 and the rotating speed sensor 6 are electrically connected or wirelessly connected with the main controller 4; when the pressure value of the first pressure sensor 3 is greater than the pressure value set in the main controller 4 and the rotating speed value of the rotating speed sensor 6 is greater than the rotating speed value set in the main controller 4, the main controller 4 controls the terminal K of the second electromagnetic valve 2 to be electrified, and the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port A; the set rotation speed value in the main controller 4 is 0 rpm. When the vehicle starts to run, the rotation speed value of the rotation speed sensor 6 is larger than 0 rpm. The set pressure value in the main controller 4 is 1 MPa. When the pressure oil in the hydraulic pump 63 enters the first pressure sensor 3 or the second pressure sensor 5, the pressure value of the first pressure sensor 3 or the second pressure sensor 5 may be greater than 1 MPa. When the pressure value of the second pressure sensor 5 is greater than the pressure value set in the main controller 4 and the rotating speed value of the rotating speed sensor 6 is greater than the rotating speed value set in the main controller 4, the main controller 4 controls the terminal K of the first electromagnetic valve 1 to be electrified, and the oil inlet P of the first electromagnetic valve 1 is not communicated with the execution port A; under normal conditions, the terminal K of the first electromagnetic valve 1 and the terminal K of the second electromagnetic valve 2 are both in a power-off state, at this time, the oil inlet P of the first electromagnetic valve 1 is communicated with the execution port A, and the oil inlet P of the second electromagnetic valve 2 is communicated with the execution port A. When the terminal K of the first electromagnetic valve 1 is electrified, the oil inlet P of the first electromagnetic valve 1 is not communicated with the execution port A; when the terminal K of the second electromagnetic valve 2 is electrified, the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port A. When the rotating speed value of the rotating speed sensor 6 is equal to the set rotating speed value in the main controller 4, the terminal K of the first electromagnetic valve 1 and the terminal K of the second electromagnetic valve 2 are controlled to lose power by the main controller 4.
Also included is a safety valve 65; the relief valve 65 is provided on an oil passage from an oil outlet of the hydraulic pump 63 to the oil tank 64.
A filter 66 is also included; the filter 66 is provided on an oil passage from the oil tank 64 to an oil inlet of the hydraulic pump 63.
When the invention is used, the sensing piece 7 is fixedly connected to the hub of the wheel of the vehicle, the rotating speed sensor 6 is fixedly connected to the frame of the vehicle, and the sensing piece 7 corresponds to the rotating speed sensor, and the fixed connection mode can be welding or bolt connection. When the wheel rotates, the sensing piece 7 fixedly connected to the hub of the wheel rotates along with the hub, the rotating speed sensor 6 corresponding to the sensing piece 7 collects the rotating speed of the wheel through the sensing piece 7, and when the vehicle starts to run, the rotating speed of the wheel collected by the rotating speed sensor 6 is larger than 0 rpm.
The working principle of the invention is as follows: when the vehicle runs in forward gear, the oil inlet P of the gear selecting operation valve 60 is communicated with the execution port A, the pressure oil in the hydraulic pump 63 enters the first pressure sensor 3 and the oil inlet P of the first electromagnetic valve 1, and the pressure value of the first pressure sensor 3 is larger than the set pressure value in the main controller 4. At the moment, the terminal K of the first electromagnetic valve 1 is in a power-off state, the oil inlet P of the first electromagnetic valve 1 is communicated with the execution port a, the pressure oil in the hydraulic pump 63 enters the forward gear clutch 61 through the gear selection operation valve 60 and the first electromagnetic valve 1, the forward gear clutch 61 is combined, and the vehicle is hung on a forward gear. Since the vehicle starts to run at this time, the rotation speed value of the wheel collected by the rotation speed sensor 6 may be greater than 0 rpm. At this time, the pressure value of the first pressure sensor 3 is greater than the set pressure value 1MPa in the main controller 4, the rotating speed value of the rotating speed sensor 6 is also greater than the set rotating speed value 0rpm in the main controller 4, the main controller 4 controls the terminal K of the second electromagnetic valve 2 to be electrified, and the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port A. At this time, even if the driver mistakenly operates the gear selection operation valve 60 to cause the vehicle to engage the reverse gear (the oil inlet P of the gear selection operation valve 60 is communicated with the execution port B), because the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port a, the pressure oil in the hydraulic pump 63 cannot enter the reverse gear clutch 62, namely, after the gear locking device of the vehicle of the invention engages the forward gear to drive, when the reverse gear is accidentally engaged in the process of driving the vehicle, the vehicle cannot be switched from the forward gear to the reverse gear, so that the service life of the transmission is long, the driving safety is high, and traffic accidents are not easy to happen.
When the vehicle runs in a reverse gear, the oil inlet P of the gear selecting operation valve 60 is communicated with the execution port B, the pressure oil in the hydraulic pump 63 enters the second pressure sensor 5 and the oil inlet P of the second electromagnetic valve 2, and the pressure value of the second pressure sensor 5 is larger than the set pressure value in the main controller 4. At this time, the terminal K of the second electromagnetic valve 2 is in a power-off state, the oil inlet P of the second electromagnetic valve 2 is communicated with the execution port a, the pressure oil in the hydraulic pump 63 passes through the gear selection operation valve 60 and then enters the reverse gear clutch 62 through the second electromagnetic valve 2, the reverse gear clutch 62 is combined, and the vehicle is hung on the reverse gear. Since the vehicle starts to run at this time, the rotation speed value of the wheel collected by the rotation speed sensor 6 may be greater than 0 rpm. At this time, the pressure value of the second pressure sensor 5 is greater than the set pressure value 1MPa in the main controller 4, the rotating speed value of the rotating speed sensor 6 is also greater than the set rotating speed value 0rpm in the main controller 4, the main controller 4 controls the terminal K of the first electromagnetic valve 1 to be electrified, and the oil inlet P of the first electromagnetic valve 1 is not communicated with the execution port A. At this time, even if the driver mistakenly operates the gear selection operation valve 60 to cause the vehicle to engage the forward gear (the oil inlet P of the gear selection operation valve 60 is communicated with the execution port a), since the oil inlet P of the first electromagnetic valve 1 is not communicated with the execution port a, the pressure oil in the hydraulic pump 63 cannot enter the forward gear clutch 61, that is, after the gear locking device of the vehicle of the present invention engages the reverse gear for running, when the forward gear is accidentally engaged during the running of the vehicle, the vehicle cannot be switched from the reverse gear to the forward gear, so that the service life of the transmission is long, the safety of the driving is high, and traffic accidents are not easy to occur.
When the terminal K of the first electromagnetic valve 1 or the terminal K of the second electromagnetic valve 2 is electrified in the running process of the vehicle, as long as the vehicle stops running, namely the wheel does not rotate any more, the rotating speed of the wheel collected by the rotating speed sensor 6 is equal to 0 rpm. Namely, the rotating speed value of the rotating speed sensor 6 is equal to the set rotating speed value in the main controller 4, and the main controller 4 controls the terminal K of the first electromagnetic valve 1 and the terminal K of the second electromagnetic valve 2 to lose power. At this time, the oil inlet P of the first electromagnetic valve 1 is communicated with the execution port A, and the oil inlet P of the second electromagnetic valve 2 is communicated with the execution port A.
Claims (3)
1. A method of operating a vehicle comprising a gear locking arrangement comprising a gear selection operating valve (60), a forward clutch (61), a reverse clutch (62), a hydraulic pump (63) and a tank (64); an oil inlet of the hydraulic pump (63) is communicated with an oil tank (64), and an oil outlet of the hydraulic pump (63) is communicated with an oil inlet P of the gear selecting operation valve (60); the operating lever (60-1) of the gear selecting operating valve (60) is connected with a gear selector in a cab through a flexible shaft; the method is characterized in that: the gear locking device further comprises a first electromagnetic valve (1), a second electromagnetic valve (2), a first pressure sensor (3), a main controller (4), a second pressure sensor (5), a rotating speed sensor (6) and an induction part (7); an execution port A of the gear selection operation valve (60) is respectively communicated with a first pressure sensor (3) and an oil inlet P of a first electromagnetic valve (1), an execution port A of the first electromagnetic valve (1) is communicated with a forward gear clutch (61), an execution port B of the gear selection operation valve (60) is respectively communicated with a second pressure sensor (5) and an oil inlet P of a second electromagnetic valve (2), and an execution port A of the second electromagnetic valve (2) is communicated with a reverse gear clutch (62); the rotating speed sensor (6) corresponds to the sensing piece (7); the first electromagnetic valve (1), the second electromagnetic valve (2), the first pressure sensor (3), the second pressure sensor (5) and the rotating speed sensor (6) are electrically connected or wirelessly communicated with the main controller (4);
when the pressure value of the first pressure sensor (3) is greater than the set pressure value in the main controller (4), and the rotating speed value of the rotating speed sensor (6) is greater than the set rotating speed value in the main controller (4), the main controller (4) controls the terminal K of the second electromagnetic valve (2) to be electrified, and at the moment, the oil inlet P of the second electromagnetic valve (2) is not communicated with the execution port A; when the pressure value of the second pressure sensor (5) is greater than the set pressure value in the main controller (4) and the rotating speed value of the rotating speed sensor (6) is greater than the set rotating speed value in the main controller (4), the main controller (4) controls the terminal K of the first electromagnetic valve (1) to be electrified, and at the moment, the oil inlet P of the first electromagnetic valve (1) is not communicated with the execution port A; when the rotating speed value of the rotating speed sensor (6) is equal to the set rotating speed value in the main controller (4), the main controller (4) controls the terminal K of the first electromagnetic valve (1) and the terminal K of the second electromagnetic valve (2) to lose power;
the working method comprises the following steps: when the vehicle is in forward gear running, an oil inlet P of the gear selecting operation valve (60) is communicated with an execution port A, pressure oil in the hydraulic pump (63) enters the first pressure sensor (3) and the oil inlet P of the first electromagnetic valve (1), and the pressure value of the first pressure sensor (3) is larger than the set pressure value in the main controller (4); at the moment, a terminal K of the first electromagnetic valve (1) is in a power-off state, an oil inlet P of the first electromagnetic valve (1) is communicated with an execution port A, pressure oil in the hydraulic pump (63) enters the forward gear clutch (61) through the gear selection operation valve (60) and the first electromagnetic valve (1), the forward gear clutch (61) is combined, and a vehicle is hung on a forward gear; the rotating speed value of the wheel collected by the rotating speed sensor (6) is greater than 0rpm because the vehicle starts to run at the moment; at the moment, the pressure value of the first pressure sensor 3 is greater than the set pressure value 1MPa in the main controller (4), the rotating speed value of the rotating speed sensor (6) is also greater than the set rotating speed value 0rpm in the main controller (4), the main controller (4) controls the terminal K of the second electromagnetic valve (2) to be electrified, and the oil inlet P of the second electromagnetic valve (2) is not communicated with the execution port A; at this time, even if the driver mistakenly operates the gear selection operation valve (60) to cause the vehicle to be in a reverse gear, the oil inlet P of the gear selection operation valve (60) is communicated with the execution port B, but because the oil inlet P of the second electromagnetic valve (2) is not communicated with the execution port A, the pressure oil in the hydraulic pump (63) can not enter the reverse gear clutch (62); that is, even when the reverse gear is inadvertently engaged while the vehicle is traveling after the forward gear is engaged by the gear locking device of the vehicle, the vehicle is not switched from the forward gear to the reverse gear.
2. The method of operation of claim 1, wherein: also comprises a safety valve (65); the safety valve (65) is arranged on an oil passage from an oil outlet of the hydraulic pump (63) to the oil tank (64).
3. The method of operation of claim 1, wherein: further comprising a filter (66); the filter (66) is disposed on an oil passage from the oil tank (64) to an oil inlet of the hydraulic pump (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056125.5A CN110657233A (en) | 2018-08-26 | 2018-08-26 | Working method of vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056125.5A CN110657233A (en) | 2018-08-26 | 2018-08-26 | Working method of vehicle |
| CN201810976973.7A CN108730507B (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810976973.7A Division CN108730507B (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657233A true CN110657233A (en) | 2020-01-07 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911056197.XA Pending CN110671494A (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle and working method thereof |
| CN201911056125.5A Pending CN110657233A (en) | 2018-08-26 | 2018-08-26 | Working method of vehicle |
| CN201810976973.7A Active CN108730507B (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911056197.XA Pending CN110671494A (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle and working method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810976973.7A Active CN108730507B (en) | 2018-08-26 | 2018-08-26 | Gear locking device of vehicle |
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| CN (3) | CN110671494A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112161046B (en) * | 2020-10-29 | 2022-04-12 | 烟台裕华液力机械有限公司 | Hydraulic control system for transmission of engineering vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201651274U (en) * | 2009-10-23 | 2010-11-24 | 长沙湘普防爆车辆有限公司 | Explosion-proof hydraulic gear shifting device |
| CN103527771A (en) * | 2012-07-02 | 2014-01-22 | 江苏奥新科技有限公司 | Gearbox gear control valve |
| CN204083196U (en) * | 2014-09-12 | 2015-01-07 | 绍兴金道齿轮箱有限公司 | A kind of fork truck hydraulic transmission gearbox proportional hydraulic control system |
| CN104854019A (en) * | 2012-12-10 | 2015-08-19 | 株式会社斗山 | Automatic stopping device for forklift |
| CN105782146A (en) * | 2016-05-28 | 2016-07-20 | 王付民 | Lifting control system of dumper |
| CN206012579U (en) * | 2016-08-31 | 2017-03-15 | 卡特彼勒（青州）有限公司 | Engineering truck and its parking braking hydraulic system |
| CN107532659A (en) * | 2015-05-12 | 2018-01-02 | 株式会社多田野 | The forward-reverse malfunction annunciator of Work machine |
| JP2018115748A (en) * | 2017-01-20 | 2018-07-26 | ジヤトコ株式会社 | Control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100030044A (en) * | 2008-09-09 | 2010-03-18 | 현대자동차주식회사 | Double clutch transmission control method |
| CN108458101A (en) * | 2016-05-31 | 2018-08-28 | 吴彬 | Opening door of vehicle forbids running gear and its working method |
-
2018
- 2018-08-26 CN CN201911056197.XA patent/CN110671494A/en active Pending
- 2018-08-26 CN CN201911056125.5A patent/CN110657233A/en active Pending
- 2018-08-26 CN CN201810976973.7A patent/CN108730507B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201651274U (en) * | 2009-10-23 | 2010-11-24 | 长沙湘普防爆车辆有限公司 | Explosion-proof hydraulic gear shifting device |
| CN103527771A (en) * | 2012-07-02 | 2014-01-22 | 江苏奥新科技有限公司 | Gearbox gear control valve |
| CN104854019A (en) * | 2012-12-10 | 2015-08-19 | 株式会社斗山 | Automatic stopping device for forklift |
| CN204083196U (en) * | 2014-09-12 | 2015-01-07 | 绍兴金道齿轮箱有限公司 | A kind of fork truck hydraulic transmission gearbox proportional hydraulic control system |
| CN107532659A (en) * | 2015-05-12 | 2018-01-02 | 株式会社多田野 | The forward-reverse malfunction annunciator of Work machine |
| CN105782146A (en) * | 2016-05-28 | 2016-07-20 | 王付民 | Lifting control system of dumper |
| CN206012579U (en) * | 2016-08-31 | 2017-03-15 | 卡特彼勒（青州）有限公司 | Engineering truck and its parking braking hydraulic system |
| JP2018115748A (en) * | 2017-01-20 | 2018-07-26 | ジヤトコ株式会社 | Control device |
Non-Patent Citations (2)
| Title |
|---|
| 温何: "《机械电子技术》", 31 May 1999, 西安：陕西科学技术出版社 * |
| 王廷军，王海洋，张子睿: "遥控多功能底盘的气动控制系统", 《辽宁工学院学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110671494A (en) | 2020-01-10 |
| CN108730507A (en) | 2018-11-02 |
| CN108730507B (en) | 2019-12-17 |
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