CN109099150B - Exhaust brake automatic shift system for vehicle - Google Patents

Exhaust brake automatic shift system for vehicle Download PDF

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Publication number
CN109099150B
CN109099150B CN201811169290.7A CN201811169290A CN109099150B CN 109099150 B CN109099150 B CN 109099150B CN 201811169290 A CN201811169290 A CN 201811169290A CN 109099150 B CN109099150 B CN 109099150B
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China
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valve
port
pressure sensor
air
pressure
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CN201811169290.7A
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CN109099150A (en
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不公告发明人
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Pan'an tengyang Automobile Brake Technology Co., Ltd
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Pan'an Tengyang Automobile Brake Technology Co Ltd
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Priority to CN201710322782.4A priority Critical patent/CN107061722B/en
Priority to CN201811169290.7A priority patent/CN109099150B/en
Publication of CN109099150A publication Critical patent/CN109099150A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/0003Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/0003Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
    • F16H61/0009Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units

Abstract

An exhaust brake automatic gear shifting system capable of reducing the vehicle brake frequency comprises an air bag, an exhaust butterfly valve switch butterfly valve cylinder, an exhaust butterfly valve, a gear shifting reversing valve, a gear shifting cylinder, a main controller, a rotating speed sensor, a first pressure sensor, a second pressure sensor, a third pressure sensor, a first electromagnetic air valve, a second electromagnetic air valve, a pneumatic control air valve and a one-way valve, the rotating speed sensor is arranged on the side face of a crankshaft signal panel of the engine, and the rotating speed sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, terminals K1 and K2 of the first electromagnetic air valve and terminals K1 and K2 of the second electromagnetic air valve are electrically connected with the main controller.

Description

Exhaust brake automatic shift system for vehicle
Technical Field
The invention relates to a vehicle, in particular to an exhaust brake automatic gear shifting system of the vehicle.
Background
When the vehicle runs on a long downhill road, the vehicle needs to be braked frequently, so that the temperature of the brake is increased, the braking efficiency is reduced, and the abrasion consumption of the brake is increased. The working frequency of a vehicle service brake system can be reduced by applying exhaust brake, so that the abrasion consumption of the service brake is reduced, many existing vehicles are provided with an exhaust brake function which is necessary supplement of the vehicle brake system, the exhaust brake is generally operated by an exhaust butterfly valve switch, and the exhaust brake starts to work when the rotating speed of an engine is higher than 1000 r/min. The exhaust brake efficient interval is that the engine speed is higher than 1600r/min, and in order to improve the exhaust brake efficiency, when the engine speed is lower than 1600r/min, the vehicle needs to be switched from a high-speed gear to a low-speed gear, and at present, the vehicle is switched from the high-speed gear to the low-speed gear mainly by manually operating a gear-shifting reversing valve, so that the operation is troublesome and the accurate operation is difficult.
Disclosure of Invention
The invention aims to provide an exhaust brake automatic gear shifting system of a vehicle, which can automatically shift from a high gear to a low gear when the engine speed is lower than 1600r/min during exhaust brake.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an exhaust braking automatic gear shifting system of vehicle, includes gas bag, exhaust butterfly valve switch butterfly valve cylinder, exhaust butterfly valve, the switching-over valve of shifting and the cylinder of shifting, the air inlet P mouth and the gas bag intercommunication of exhaust butterfly valve switch, the execution mouth A mouth of exhaust butterfly valve switch and the no pole chamber intercommunication of butterfly valve cylinder, the piston rod of butterfly valve cylinder and the handle fixed connection of exhaust butterfly valve, its innovation point lies in: also comprises a main controller, a rotating speed sensor, a first pressure sensor, a second pressure sensor, a third pressure sensor, a first electromagnetic air valve, a second electromagnetic air valve, an air control air valve and a one-way valve, an air inlet port P of the gear-shifting reversing valve is communicated with the air bag, an execution port A of the gear-shifting reversing valve is communicated with an air inlet port P of the first electromagnetic air valve, an execution port A of the first electromagnetic air valve is communicated with a rodless cavity of the gear-shifting cylinder, an execution port B of the gear-shifting reversing valve is communicated with an air inlet port P of the pneumatic control air valve, the execution port A of the pneumatic control air valve is respectively communicated with an air outlet of the one-way valve and a rod cavity of the gear-shifting cylinder through two air channels, an air inlet port P of the second electromagnetic air valve is communicated with the air bag, and an execution port A of the second electromagnetic air valve is respectively communicated with a control port K of the pneumatic control air valve and an air inlet of the one-way valve through two air channels;
the rotating speed sensor is arranged on the side face of a crankshaft signal panel of the engine, the first pressure sensor is connected to an air passage from an execution port A of an exhaust butterfly valve switch to a rodless cavity of a butterfly valve cylinder, the second pressure sensor is connected to an air passage from an execution port A of a first electromagnetic air valve to a rodless cavity of a gear shifting cylinder, and the third pressure sensor is connected to an execution port A of an air control air valve to an air passage from the execution port A of the gear shifting cylinder to a rod cavity of the gear shifting cylinder;
the rotating speed sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, the terminals K1 and K2 of the first electromagnetic air valve and the terminals K1 and K2 of the second electromagnetic air valve are all electrically connected with the main controller, when the engine speed measured by the speed sensor is less than 1600r/min and the first pressure sensor and the second pressure sensor have pressure, the main controller controls the terminal K1 of the first electromagnetic air valve to be electrified, when the first pressure sensor has no pressure, the main controller controls a terminal K2 of the first electromagnetic gas valve and a terminal K2 of the second electromagnetic gas valve to be electrified, when the engine speed measured by the speed sensor is less than 1600r/min and the first pressure sensor has pressure, and the second pressure sensor and the third pressure sensor do not have pressure, the main controller controls the terminal K1 of the second electromagnetic air valve to be electrified.
The invention has the advantages that: because the vehicle is subjected to exhaust braking when the vehicle is hung in the third gear, the first pressure sensor has pressure, the port P of the air inlet of the gear shifting reversing valve is communicated with the port A of the execution port, the pressure gas in the air bag flows to the rodless cavity of the gear shifting cylinder through the first electromagnetic valve, the second pressure sensor has pressure, at the moment, if the engine rotating speed measured by the rotating speed sensor is less than 1600r/min, the main controller can control the terminal K1 of the first electromagnetic valve to be electrified, the port A of the execution port of the first electromagnetic valve is communicated with the atmosphere, so that the rod cavity and the rodless cavity of the gear shifting cylinder do not have pressure, and the vehicle is automatically switched to the second gear. At this time, if the vehicle is still in an exhaust braking state, that is, the first pressure sensor 5 has pressure, and the engine speed measured by the speed sensor is still less than 1600r/min, the main controller 7 controls the terminal K1 of the second electromagnetic air valve 13 to be electrified, so that the port P of the air inlet of the second electromagnetic air valve is communicated with the port a of the execution port, the pressure gas in the air bag enters the port K of the air control air valve and the air inlet of the check valve through the second electromagnetic air valve, and enters the rod cavity of the shift cylinder after passing through the check valve, so that the rod cavity of the shift cylinder has pressure, the rodless cavity of the shift cylinder does not have pressure, and the vehicle is automatically switched to the first gear. Therefore, when the engine speed is lower than 1600r/min during exhaust braking, the vehicle can be automatically switched from a high gear to a low gear.
The invention is further described below with reference to the accompanying drawings and the examples given.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 1, an exhaust braking automatic gear shifting system of a vehicle comprises an air bag 1, an exhaust butterfly valve switch 2, a butterfly valve cylinder 3, an exhaust butterfly valve 4, a gear shifting reversing valve 8 and a gear shifting cylinder 11, wherein an air inlet P port of the exhaust butterfly valve switch 2 is communicated with the air bag 1, an execution port a port of the exhaust butterfly valve switch 2 is communicated with a rodless cavity of the butterfly valve cylinder 3, a piston rod 3-1 of the butterfly valve cylinder 3 is fixedly connected with a handle 4-1 of the exhaust butterfly valve 4, and the innovation point is that:
also comprises a main controller 7, a rotating speed sensor 6, a first pressure sensor 5, a second pressure sensor 10, a third pressure sensor 12, a first electromagnetic air valve 9, a second electromagnetic air valve 13, an air control air valve 14 and a one-way valve 15, an air inlet port P of the gear-shifting reversing valve 8 is communicated with the air bag 1, an execution port A of the gear-shifting reversing valve 8 is communicated with an air inlet port P of the first electromagnetic air valve 9, an execution port A of the first electromagnetic air valve 9 is communicated with a rodless cavity of the gear-shifting air cylinder 11, an execution port B of the gear-shifting reversing valve 8 is communicated with an air inlet port P of the pneumatic control air valve 14, the execution port A of the pneumatic control air valve 14 is respectively communicated with an air outlet of the one-way valve 15 and a rod cavity of the gear-shifting air cylinder 11 through two air channels, an air inlet port P of the second electromagnetic air valve 13 is communicated with the air bag 1, and an execution port A of the second electromagnetic air valve 13 is respectively communicated with a control port K of the air control air valve 14 and an air inlet of the one-way valve 15 through two air channels;
the rotating speed sensor 6 is arranged on the side face of a crankshaft signal panel of the engine, the rotating speed sensor 6 is used for measuring the rotating speed of the engine, the first pressure sensor 5 is connected to an air passage from an execution port A of the exhaust butterfly valve switch 2 to a rodless cavity of the butterfly valve cylinder 3 and used for receiving a pressure signal of the rodless cavity of the butterfly valve cylinder 3, when exhaust braking is carried out, the rodless cavity of the butterfly valve cylinder 3 has pressure, when exhaust braking is released, the rodless cavity of the butterfly valve cylinder 3 does not have pressure, the second pressure sensor 10 is connected to an air passage from an execution port A of the first electromagnetic air valve 9 to the rodless cavity of the shift cylinder 11 and used for receiving a pressure signal of the rodless cavity of the shift cylinder 11, and the third pressure sensor 12 is connected to an air passage from an execution port A of the pneumatic control air valve 14 to the rodless cavity of the shift cylinder 11; for receiving a pressure signal from the rod chamber of the shift cylinder 11.
The rotating speed sensor 6, the first pressure sensor 5, the second pressure sensor 10, the third pressure sensor 12, terminals K1 and K2 of the first electromagnetic gas valve 9 and terminals K1 and K2 of the second electromagnetic gas valve 13 are all electrically connected with the main controller 7, when the engine speed measured by the speed sensor 6 is less than 1600r/min and the first pressure sensor 5 and the second pressure sensor 10 have pressure, the main controller 7 controls the terminal K1 of the first electromagnetic valve 9 to be electrified, when the first pressure sensor 5 does not have pressure, the main controller 7 controls the terminal K2 of the first solenoid gas valve 9 and the terminal K2 of the second solenoid gas valve 13 to be powered, when the engine speed measured by the speed sensor 6 is less than 1600r/min and the first pressure sensor 5 has pressure and neither the second pressure sensor 10 nor the third pressure sensor 12 has pressure, the main controller 7 controls the terminal K1 of the second electromagnetic valve 13 to be electrified.
Under normal conditions, exhaust braking is not performed, namely, the exhaust braking is in a release state, at the moment, an execution port A of the exhaust butterfly valve switch 2 is communicated with the atmosphere, the first pressure sensor 5 has no pressure, the main controller 7 controls a terminal K2 of the first electromagnetic air valve 9 and a terminal K2 of the second electromagnetic air valve 13 to be electrified, so that an air inlet P port of the first electromagnetic air valve 9 is communicated with the execution port A, an air inlet P port of the second electromagnetic air valve 13 is not communicated with the execution port A, pressure air in the air bag 1 cannot enter a control port K of the air control air valve 14 through the second electromagnetic air valve 13, and the air inlet P port of the air control air valve 14 is communicated with the execution port A. At this time, the driver operates the gear shifting reversing valve 8 to enable the port P of the air inlet of the gear shifting reversing valve 8 to be communicated with the port A of the execution port, the vehicle is hung on the third gear, at this time, the rodless cavity of the gear shifting cylinder 11 has pressure, the rod cavity of the gear shifting cylinder 11 has no pressure, therefore, the second pressure sensor 10 has pressure, the third pressure sensor 12 has no pressure, the port P of the intake port of the shift change valve 8 is communicated with the port B of the actuating port, the vehicle is hung on a gear, the rodless chamber of the shift cylinder 11 has no pressure, the rod chamber of the shift cylinder 11 has pressure, therefore, the second pressure sensor 10 has no pressure, the third pressure sensor 12 has pressure, so that the port P of the air inlet of the gear shifting reversing valve 8 is not communicated with the port A and the port B of the execution port, the rod cavity and the rodless cavity of the gear shifting cylinder 11 have no pressure, the vehicle is hung on a second gear, and the second pressure sensor 10 and the third pressure sensor 12 have no pressure;
when the vehicle is hung in a third gear, exhaust braking is carried out, an air inlet P port of an exhaust butterfly valve switch 2 is communicated with an execution port A port, pressure gas in an air bag 1 passes through the exhaust butterfly valve switch 2 to a rodless cavity of a butterfly valve cylinder 3, a first pressure sensor 5 has pressure, an air inlet P port of a gear shifting reversing valve 8 is communicated with the execution port A port, the pressure gas in the air bag 1 passes through a first electromagnetic valve 9 to a rodless cavity of a gear shifting cylinder 11, a second pressure sensor 10 has pressure, at the moment, if the engine speed measured by a speed sensor 6 is less than 1600r/min, a main controller 7 can control a terminal K1 of the first electromagnetic valve 9 to be electrified, the execution port A port of the first electromagnetic valve 9 is communicated with the atmosphere, at the moment, a rod cavity of the gear shifting cylinder 11 does not have pressure, so that the rod cavity and the rodless cavity of the gear shifting cylinder 11 do not have pressure, and the second pressure sensor 10 and a third pressure sensor 12 do not have, the vehicle automatically switches to second gear. The vehicle is thus automatically switched from high gear to low gear.
At this time, if the vehicle is still in the exhaust braking state, that is, the first pressure sensor 5 has pressure, and the engine speed measured by the speed sensor 6 is still less than 1600r/min, because at this time, the second pressure sensor 10 and the third pressure sensor 12 do not have pressure, the main controller 7 controls the terminal K1 of the second electromagnetic valve 13 to be powered, so that the port P of the air inlet of the second electromagnetic valve 13 is communicated with the port a of the execution port, the pressure gas in the air bag 1 enters the port K of the pneumatic control valve 14 and the air inlet of the check valve 15 through the second electromagnetic valve 13, enters the rod cavity of the shift cylinder 11 through the check valve 15, and makes the pneumatic control valve 14 act to make the port P of the pneumatic control valve 14 not communicated with the execution port a, so that the pressure gas in the air bag 1 can reach the rod cavity of the shift cylinder 11 through the second electromagnetic valve 13 and the check valve 15, and at the moment, the port P of the air inlet of the pneumatic control air valve 14 is not communicated with the execution port A, so that the pressure gas in the rod cavity of the gear shifting cylinder 11 cannot be communicated with the atmosphere through the port B of the gear shifting reversing valve 8 after passing through the pneumatic control air valve 14, the rod cavity of the gear shifting cylinder 11 has pressure, the rodless cavity of the gear shifting cylinder 11 does not have pressure, and the vehicle is automatically switched to the first gear. The vehicle is thus automatically switched from high gear to low gear.

Claims (1)

1. The utility model provides an exhaust braking automatic gear shifting system of vehicle, includes gas bag (1), exhaust butterfly valve switch (2), butterfly valve cylinder (3), exhaust butterfly valve (4), switching-over valve (8) and shift cylinder (11) of shifting, the air inlet P mouth and the gas bag (1) intercommunication of exhaust butterfly valve switch (2), the execution mouth A mouth of exhaust butterfly valve switch (2) and the rodless chamber intercommunication of butterfly valve cylinder (3), piston rod (3-1) of butterfly valve cylinder (3) and handle (4-1) fixed connection of exhaust butterfly valve (4), its characterized in that:
the gear shifting control system is characterized by further comprising a main controller (7), a rotating speed sensor (6), a first pressure sensor (5), a second pressure sensor (10), a third pressure sensor (12), a first electromagnetic air valve (9), a second electromagnetic air valve (13), a pneumatic control air valve (14) and a one-way valve (15), wherein an air inlet P port of the gear shifting reversing valve (8) is communicated with the air bag (1), an execution port A port of the gear shifting reversing valve (8) is communicated with an air inlet P port of the first electromagnetic air valve (9), an execution port A port of the first electromagnetic air valve (9) is communicated with a rodless cavity of the gear shifting cylinder (11), an execution port B port of the gear shifting reversing valve (8) is communicated with an air inlet P port of the pneumatic control air valve (14), an execution port A port of the pneumatic control air valve (14) is respectively communicated with an air outlet of the one-way valve (15) and a rod cavity of the gear shifting cylinder (11) through two air channels, and a gear shifting port P port of the second electromagnetic air inlet (13), an execution port A of the second electromagnetic air valve (13) is respectively communicated with a control port K of the air control air valve (14) and an air inlet of the one-way valve (15) through two air channels;
the rotating speed sensor (6) is arranged on the side face of a crankshaft signal panel of the engine, the first pressure sensor (5) is connected to an air passage from an execution port A of an exhaust butterfly valve switch (2) to a rodless cavity of a butterfly valve cylinder (3), the second pressure sensor (10) is connected to an air passage from an execution port A of a first electromagnetic air valve (9) to a rodless cavity of a gear shifting cylinder (11), and the third pressure sensor (12) is connected to an execution port A of an air control air valve (14) to an air passage with a rod cavity of the gear shifting cylinder (11);
the rotating speed sensor (6), the first pressure sensor (5), the second pressure sensor (10), the third pressure sensor (12), terminals K1 and K2 of the first electromagnetic air valve (9) and terminals K1 and K2 of the second electromagnetic air valve (13) are all electrically connected with the main controller (7), when the rotating speed of an engine measured by the rotating speed sensor (6) is less than 1600r/min and the first pressure sensor (5) and the second pressure sensor (10) both have pressure, the main controller (7) controls the terminal K1 of the first electromagnetic air valve (9) to be electrified, when the first pressure sensor (5) does not have pressure, the main controller (7) controls the terminal K2 of the first electromagnetic air valve (9) and the terminal K2 of the second electromagnetic air valve (13) to be electrified, and when the rotating speed of the engine measured by the rotating speed sensor (6) is less than 1600r/min and the first pressure sensor (5) has pressure, When the second pressure sensor (10) and the third pressure sensor (12) do not have pressure, the main controller (7) controls the terminal K1 of the second electromagnetic air valve (13) to be electrified;
when a vehicle is hung in a third gear, exhaust braking is carried out, the first pressure sensor has pressure, an air inlet P port of the gear shifting reversing valve is communicated with an execution port A port, pressure gas in the air bag flows to a rodless cavity of the gear shifting cylinder through the first electromagnetic air valve, the second pressure sensor has pressure, at the moment, if the rotating speed of an engine measured by the rotating speed sensor is less than 1600r/min, the main controller can control a terminal K1 of the first electromagnetic air valve to be electrified, the execution port A port of the first electromagnetic air valve is communicated with the atmosphere, so that the rod cavity and the rodless cavity of the gear shifting cylinder do not have pressure, and the vehicle is automatically switched to a second gear.
CN201811169290.7A 2017-05-09 2017-05-09 Exhaust brake automatic shift system for vehicle Active CN109099150B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710322782.4A CN107061722B (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system of vehicle
CN201811169290.7A CN109099150B (en) 2017-05-09 2017-05-09 Exhaust brake automatic shift system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811169290.7A CN109099150B (en) 2017-05-09 2017-05-09 Exhaust brake automatic shift system for vehicle

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201710322782.4A Division CN107061722B (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system of vehicle

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CN109099150A CN109099150A (en) 2018-12-28
CN109099150B true CN109099150B (en) 2020-10-27

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Family Applications (4)

Application Number Title Priority Date Filing Date
CN201710322782.4A Active CN107061722B (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system of vehicle
CN201811169305.XA Active CN109027215B (en) 2017-05-09 2017-05-09 Automatic gear shifting system capable of reducing vehicle braking frequency and working method thereof
CN201811169298.3A Withdrawn CN109237008A (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system and its working method of vehicle
CN201811169290.7A Active CN109099150B (en) 2017-05-09 2017-05-09 Exhaust brake automatic shift system for vehicle

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Application Number Title Priority Date Filing Date
CN201710322782.4A Active CN107061722B (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system of vehicle
CN201811169305.XA Active CN109027215B (en) 2017-05-09 2017-05-09 Automatic gear shifting system capable of reducing vehicle braking frequency and working method thereof
CN201811169298.3A Withdrawn CN109237008A (en) 2017-05-09 2017-05-09 The exhaust brake automatic gear shifting system and its working method of vehicle

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CN109027215A (en) 2018-12-18
CN107061722B (en) 2019-01-18
CN109237008A (en) 2019-01-18
CN109027215B (en) 2020-10-30
CN107061722A (en) 2017-08-18
CN109099150A (en) 2018-12-28

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