CN214565285U - Parking braking control device - Google Patents
Parking braking control device Download PDFInfo
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- CN214565285U CN214565285U CN202120951274.4U CN202120951274U CN214565285U CN 214565285 U CN214565285 U CN 214565285U CN 202120951274 U CN202120951274 U CN 202120951274U CN 214565285 U CN214565285 U CN 214565285U
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- parking
- brake
- relay
- circuit
- lamp relay
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Abstract
The utility model discloses a parking braking controlling means, brake relay and pilot lamp relay, it has the parking solenoid valve to establish ties on the circuit of the output of brake relay normally closed type contact circular telegram circuit, be provided with brake switch on the circuit of the input of brake relay parking coil circular telegram circuit, be provided with the pressure switch who matches with the parking solenoid valve on the circuit of the input of pilot lamp relay coil circular telegram circuit, the highway section that is close to the ground point on the pilot lamp relay coil circular telegram circuit of pilot lamp relay is equipped with the electric connection point, display instrument is connected to pilot lamp relay normally open contact one end. The pressure switch is arranged in the power-on loop of the indicating lamp relay coil to detect the pressure in the brake pipeline at the rear end of the parking brake solenoid valve, so that the brake relay is associated with the indicating lamp relay and can accurately feed a pressure signal back to the pressure feedback TCU, the parking brake state of the whole vehicle can be correctly detected through the display instrument, and the safety performance of the whole vehicle is further improved.
Description
Technical Field
The utility model relates to a loader parking control field, concretely relates to parking braking controlling means.
Background
The parking brake system is a very important system of the whole vehicle, a parking brake control system on a loader not only can correctly indicate a parking state, but also needs to feed back the state of a parking brake so as to ensure the safety of personnel in the vehicle, and a parking brake indicator lamp on the loader directly gives the parking state to a display to display by a parking brake switch at the moment, so that the on-off state of the parking brake switch cannot reflect the states of a parking brake electromagnetic valve and the parking brake.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem provide a parking braking controlling means convenient to show the parking state, improve whole car security.
In order to achieve the purpose, the utility model discloses a parking braking controlling means, its structural feature is including brake relay and pilot lamp relay, it has the parking solenoid valve to establish ties on the circuit of the output of brake relay normally closed type contact electric loop, is provided with brake switch on the circuit of the input of brake relay parking coil electric loop, be provided with the pressure switch who matches with the parking solenoid valve on the circuit of the input of pilot lamp relay coil electric loop, and the highway section that is close to the ground point on the pilot lamp relay coil electric loop of pilot lamp relay is equipped with the electric connection point, and this electric connection point is connected to the one end of pilot lamp relay normally open contact, and the display instrument is connected to the other end.
Preferably, a pressure feedback TCU is arranged on a circuit between the pressure switch and the coil of the power-on loop of the indicator lamp relay coil, a feedback circuit communicated with the pressure feedback TCU is arranged between the pressure feedback TCU and the power-on loop of the indicator lamp relay coil, and the pressure switch can detect the pressure in a brake pipeline at the rear end of the parking brake solenoid valve and accurately feed the pressure back to the pressure feedback TCU.
Preferably, the brake relay and the indicator light relay share the same power supply to form a total power-on loop, a fuse is arranged on the total power-on loop, and the safety operation of the circuit can be ensured by arranging the fuse on the total power-on loop.
Preferably, a parking brake is arranged on a control pipeline at the output end of the parking electromagnetic valve, and the pressure switch is matched with the parking brake to detect the pressure in a brake pipeline at the rear end of the parking brake electromagnetic valve.
To sum up, the beneficial effects of the utility model reside in that: the pressure switch is arranged on the power-on loop of the indicating lamp relay coil to detect the pressure in the brake pipeline at the rear end of the parking brake solenoid valve, so that the brake relay is associated with the indicating lamp relay and can accurately feed a pressure signal back to the pressure feedback TCU, the parking brake state of the whole vehicle can be correctly detected through the display instrument, and the safety performance of the whole vehicle is further improved.
Drawings
Fig. 1 is an overall electrical schematic diagram of the present invention.
In the figure: 1. A brake relay; 2. an indicator light relay; 3. a brake relay normally closed contact energizing loop; 4. a brake relay parking coil power-on loop; 5. an indicator lamp relay coil energizing loop; 6. the normally open contact of the pilot lamp relay is electrified to return circuit; 7. a parking solenoid valve; 8. a brake switch; 9. a pressure switch; 10. a display instrument; 11. an electrical connection point; 12. a feedback circuit; 13. and a fuse.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a sharing same power forms the braking relay 1 and the pilot lamp relay 2 of circular telegram return circuit, of course, braking relay 1 and pilot lamp relay 2 also can connect different powers respectively and form the circular telegram return circuit, and it has fuse 13 to establish ties on circular telegram return circuit front end circuit, can guarantee circuit safe operation through fuse 13.
In a preferred embodiment of the present invention, two contacts of the switch of the brake relay 1 are connected to the normally closed contact power-on loop 3 of the brake relay, the coil of the brake relay 1 is connected to the parking coil power-on loop 4 of the brake relay, a parking solenoid valve 7 is connected in series to the circuit of the output end of the normally closed contact power-on loop 3 of the brake relay, and a parking brake for controlling the parking status is connected to the circuit of the output end of the parking solenoid valve 7; a brake switch 8 is arranged on a circuit of an input end of the brake relay parking coil electrifying loop 4, the parking electromagnetic valve 7 is controlled by controlling the closing of the brake switch 8, and the output tail ends of the brake relay normally closed contact electrifying loop 3 and the brake relay parking coil electrifying loop 4 are not grounded.
As shown in fig. 1, in this embodiment, a pressure switch 9 matched with the parking solenoid valve 7 is disposed on a circuit at an input end of the indicator lamp relay coil energizing circuit 5, the pressure switch 9 is a normally closed type and is turned off when receiving a high-voltage signal, a sensing end of the pressure switch 9 may sense the pressure signal at an output end of the parking solenoid valve 7, and the pressure switch 9 receives the high-voltage signal when the parking solenoid valve 7 is energized to control the parking brake to be turned off.
Preferably, a feedback circuit 12 communicated with the pressure feedback TCU is connected to a circuit at an input end of the indicator lamp relay coil energizing circuit 5 at the rear section of the pressure switch 9, an electrical connection point 11 is arranged on an output end circuit of the indicator lamp relay coil energizing circuit 5 near a grounding point section, an input end circuit of the indicator lamp relay normally-open type contact energizing circuit 6 is connected to the electrical connection point 11, an output end circuit of the indicator lamp relay normally-open type contact energizing circuit 6 is connected to a display instrument 10, and of course, the display instrument 10 can display a state that the indicator lamp relay 2 has no electrical signal.
As shown in fig. 1, according to a specific embodiment of the present invention, when the parking brake switch 8 is turned off, the coil on the parking coil power-on circuit 4 of the brake relay is not powered and the normally closed contact power-on circuit 3 of the brake relay is powered on, the parking solenoid valve 7 is powered on to turn on the parking pipe, and the parking brake is controlled to be in an off state, so that the vehicle can normally run; when a vehicle normally runs, a pressure switch 9 on an input end circuit of an indicator lamp relay coil electrifying loop 5 detects a high-voltage signal of a parking pipeline, the pressure switch 9 is switched off, no electric signal is fed back to a pressure feedback TCU (temperature control unit) to run the vehicle, meanwhile, an indicator lamp relay 2 without the electric signal displays the state of the no electric signal at the moment through a display instrument 10, and the state displayed by the display instrument 10 at the moment is a running state.
In another specific embodiment of the present invention, when the parking brake switch 8 is closed, the coil on the parking coil power-on circuit 4 of the brake relay is powered on and the contact of the normally closed contact power-on circuit 3 of the brake relay is in the off state, at this time, the parking solenoid valve 7 on the normally closed contact power-on circuit 3 of the brake relay is in the non-power state, the parking pipeline is disconnected, so that the parking brake is in the low-voltage state, and at this time, the parking state is obtained; and pressure switch 9 on the 5 input end circuits of pilot lamp relay coil circular telegram return circuit detects the low pressure signal of 7 parking pipelines of parking solenoid valve, pressure switch 9 is in the closure state and makes the signal of telecommunication switch on, this signal of telecommunication feeds back to the parking state on pressure feedback TCU, signal of telecommunication transmits pilot lamp relay 2 simultaneously, make the contact on the pilot lamp relay normal open type contact circular telegram return circuit 6 closed, this signal of telecommunication passes through pilot lamp relay coil circular telegram return circuit 5 and pilot lamp relay normal open type contact circular telegram return circuit 6 and transmits display instrument 10, the state that display instrument 10 shows at this moment is the parking state.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. A parking brake control device characterized in that: the parking brake system comprises a brake relay (1) and an indicator lamp relay (2), a parking solenoid valve (7) is connected in series to a circuit of an output end of a normally closed contact power-on loop (3) of the brake relay, a brake switch (8) is arranged on a circuit of an input end of a parking coil power-on loop (4) of the brake relay, a pressure switch (9) matched with the parking solenoid valve (7) is arranged on a circuit of an input end of the indicator lamp relay (5), a road section, close to a grounding point, of the indicator lamp relay coil power-on loop (5) of the indicator lamp relay (2) is provided with an electric connection point (11), one end of a normally open contact of the indicator lamp relay (2) is connected with the electric connection point (11), and the other end of the normally open contact of the indicator lamp relay (2) is connected with a display instrument (10).
2. The parking brake control apparatus according to claim 1, characterized in that: a pressure feedback TCU is arranged on a circuit between the pressure switch (9) and the coil of the indicator lamp relay coil power-on loop (5), and a feedback circuit (12) communicated with the pressure feedback TCU and the indicator lamp relay coil power-on loop is arranged between the pressure feedback TCU and the indicator lamp relay coil power-on loop.
3. The parking brake control apparatus according to claim 1, characterized in that: the brake relay (1) and the indicator light relay (2) share the same power supply to form a total power-on loop, and a fuse (13) is arranged on the total power-on loop.
4. The parking brake control apparatus according to claim 1, characterized in that: and a parking brake is arranged on a control pipeline at the output end of the parking electromagnetic valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951274.4U CN214565285U (en) | 2021-05-06 | 2021-05-06 | Parking braking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120951274.4U CN214565285U (en) | 2021-05-06 | 2021-05-06 | Parking braking control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214565285U true CN214565285U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120951274.4U Active CN214565285U (en) | 2021-05-06 | 2021-05-06 | Parking braking control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214565285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179770A (en) * | 2021-11-17 | 2022-03-15 | 太原重工股份有限公司 | Excavator brake control system |
| CN114954412A (en) * | 2022-05-31 | 2022-08-30 | 上海三一重机股份有限公司 | Parking fault detection method, device and system and working machine |
-
2021
- 2021-05-06 CN CN202120951274.4U patent/CN214565285U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179770A (en) * | 2021-11-17 | 2022-03-15 | 太原重工股份有限公司 | Excavator brake control system |
| CN114954412A (en) * | 2022-05-31 | 2022-08-30 | 上海三一重机股份有限公司 | Parking fault detection method, device and system and working machine |
| CN114954412B (en) * | 2022-05-31 | 2023-08-22 | 上海三一重机股份有限公司 | Parking fault detection method, device and system and working machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Lovol Heavy Industry Group Co.,Ltd. Address before: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee before: LOVOL Engineering Machinery Group Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |