CN203008992U - Engine oil pressure protection system of engine - Google Patents
Engine oil pressure protection system of engine Download PDFInfo
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- CN203008992U CN203008992U CN 201320216487 CN201320216487U CN203008992U CN 203008992 U CN203008992 U CN 203008992U CN 201320216487 CN201320216487 CN 201320216487 CN 201320216487 U CN201320216487 U CN 201320216487U CN 203008992 U CN203008992 U CN 203008992U
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- oil pressure
- engine
- engine oil
- alarm
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Abstract
The utility model discloses an engine oil pressure protection system of an engine. The engine oil pressure protection system of the engine comprises an electronic controller, an oil pressure sensor, an alerter and an output unit. The oil pressure sensor is used for detecting pressure of engine oil. An alarm circuit and a transmission interface of the electronic controller receive a detected engine oil pressure value from the oil pressure sensor. The transmission interface is used for sending the engine oil pressure value to the output unit, so that the engine oil pressure value is output. The alarm circuit is provided with an oil pressure upper limit value and an oil pressure lower limit value in a presetting mode. When the engine oil pressure value is larger than the oil pressure upper limit value, the alarm circuit opens the alerter to carry out high pressure alarm. When the engine oil pressure value is smaller than the oil pressure lower limit value, the alarm circuit opens the alerter to carry out low pressure alarm. According to the engine oil pressure protection system of the engine, the engine oil pressure value is output through the output unit, the alarm is carried out under abnormal conditions of oil pressure, and a user can accurately grasp overall conditions of an engine oil lubricating system.
Description
Technical field
The utility model relates to a kind of engine oil pressure protective system.
Background technique
Commercial vehicle engine all is equipped with the oil lubricating system, damages to avoid motor.In the motor using process, following problem may appear in the oil lubricating system: 1) machine oil lacks, i.e. the too low situation of engine oil pressure, and this can cause the engine mechanical wearing and tearing, causes motor to damage when serious; 2) machine oil is too much, and namely the too high situation of engine oil pressure, can cause unnecessary waste, machine oil to enter the firing chamber and participate in burning, thereby cause discharging deteriorated.For avoiding the generation of above situation, just need to monitor to keep engine oil pressure in suitable level to engine oil pressure.
The model utility content
The technical problems to be solved in the utility model is that engine oil pressure of the prior art detects and alarming system can't provide comprehensive information to make the user definitely grasp the situation of oil lubricating system in order to overcome; thereby cause the user can't in time make the defective that accurate reply causes motor to damage, propose a kind of engine oil pressure protective system.
The utility model solves above-mentioned technical problem by following technical proposals:
the utility model provides a kind of engine oil pressure protective system, its characteristics are, comprise an electronic controller, an oil pressure sensor that is connected with the input end of this electronic controller, and an alarm that is connected with the output terminal of this electronic controller and an output unit, this oil pressure sensor is used for detecting in real time the engine oil pressure of motor and obtaining an engine oil pressure value, one transmission interface of this electronic controller and a warning circuit receive this engine oil pressure value from this oil pressure sensor respectively, this transmission interface also is used for this engine oil pressure value is sent to this output unit to export this engine oil pressure value, this warning circuit is preset with an oil pressure CLV ceiling limit value and an oil pressure lower limit, when this engine oil pressure value during greater than this oil pressure CLV ceiling limit value this warning circuit open this alarm to carry out an alarm for high voltage, when this engine oil pressure value during less than this oil pressure lower limit this warning circuit open this alarm to carry out a low pressure alarming.
It will be appreciated by those skilled in the art that engine oil pressure scope between the two that this oil pressure CLV ceiling limit value and this oil pressure CLV ceiling limit value limit is the oil pressure scope of oil lubricating system normal working.When the oil pressure appearance was abnormal, on the one hand, this warning circuit can be controlled this alarm and report to the police, and different warnings is carried out in too high and too low meeting for oil pressure.And warning can be persistency, abnormal conditions is not reacted because not perceiving for the moment to report to the police to avoid the user.This transmission interface also can be sent to this output unit with this engine oil pressure value in real time on the other hand, by this output unit output.This has just guaranteed that the user can also receive warning on the basis of grasping in real time oil pressure when appearance is abnormal, and the help user in time reacts to abnormal conditions.
Preferably, be less than or equal to this oil pressure CLV ceiling limit value and during more than or equal to this oil pressure lower limit, this warning circuit is closed this alarm when this engine oil pressure value.
Being arranged so that after oil pressure causes continuing warning extremely like this until oil pressure recovers normally again, reported to the police and just can be eliminated.
Preferably; this engine oil pressure protective system also comprises a torque limiter; during greater than this oil pressure CLV ceiling limit value or less than this oil pressure lower limit, this warning circuit is opened this torque limiter when this engine oil pressure value, with the torque limited of motor output in a predetermined torque scope.
This torque limiter provides a kind of active salvo; namely when detect oil pressure abnormal after, even the user does not carry out any controlling, this warning circuit still can initiatively be opened this torque limiter; with the moment of torsion of limiting engine output, thereby reach the effect of initiatively protecting motor.
Preferably, connect by a kind of bus for automobile failure diagnosis between this warning circuit and this alarm, connect by the CAN bus between this transmission interface and this output unit.
Wherein, OBD-II standard (second generation On-Board Diagnostics (OBD) technical standard) is followed in data communication between this warning circuit and this alarm, the bus that should be used for automobile failure diagnosis is KWP bus (full name is keyword protocol bus), can adopt KWP2000(keyword protocol2000 particularly) the bus connection.The CAN bus is controller local area network's bus.
preferably, this electronic controller also comprises an alarm control circuit, this engine oil pressure protective system also comprises an engine rotation speed sensor and an engine water temperature sensor that is connected with the input end of this electronic controller, this engine rotation speed sensor and this engine water temperature sensor are respectively used to detect in real time engine speed and engine water temperature and are sent to this alarm control circuit, this alarm control circuit is preset with an engine speed threshold values and an engine water temperature threshold values, engine speed less than this engine speed threshold values or engine water temperature during less than this engine water temperature threshold values this alarm control circuit close this warning circuit, in engine speed more than or equal to this engine speed threshold values, and engine water temperature during more than or equal to this engine water temperature threshold values this alarm control circuit open this warning circuit.
Those skilled in the art are to be understood that, in the situation that engine speed is very low, oil pressure is lower than normal working, and the oil pressure that therefore records this moment should be lower than normal state, and this moment can't be as judging whether the oil lubricating system has abnormal foundation to the detection of oil pressure.Confirm with the running state to motor at first by detecting engine speed and engine water temperature, to determine whether open this warning circuit, can save unnecessary alarm procedure.Hold intelligiblely, this engine speed threshold values can be set to the engine idle value, the water temperature when this engine water temperature threshold values can be set to motor and is in idling mode.
Preferably, this output unit is to control instrument in one.
Preferably, this alarm is a tutorial light, and this alarm for high voltage and this low pressure alarming are respectively one first and dodge code and one second sudden strain of a muscle code.
Adopt the form of dodging code to report to the police and more easily cause user's attention, can avoid the user because of the careless and inadvertent situation of not discovering warning.
On the basis that meets related domain general knowledge, above-mentioned each optimum condition, but combination in any namely get each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is:
Engine oil pressure protective system of the present utility model; the engine oil pressure value of utilizing an output unit output transducer to detect by the transmission interface in electronic controller; simultaneously in the situation that at the abnormal alarm that carries out of oil pressure; provide comprehensive information to make the user can definitely grasp the concrete condition of oil lubricating system; thereby in time the oil pressure abnormal conditions are reacted, better protected motor to be without prejudice.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment 1 engine oil pressure protective system.
Fig. 2 is the schematic diagram of the utility model embodiment 2 engine oil pressure protective system.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, with the detailed description the technical solution of the utility model, but therefore the utility model is not limited among described scope of embodiments.
as shown in Figure 1, the engine oil pressure protective system of the present embodiment, comprise an electronic controller 1, an oil pressure sensor 2 that is connected with the input end of this electronic controller 1, and an alarm 3 that is connected with the output terminal of this electronic controller 1 and an output unit 4, this oil pressure sensor 2 is used for detecting in real time the engine oil pressure of motor and obtaining an engine oil pressure value, one transmission interface 12 of this electronic controller 1 and a warning circuit 11 receive this engine oil pressure value from this oil pressure sensor 2 respectively, this transmission interface 12 also is used for this engine oil pressure value is sent to this output unit 4 to export this engine oil pressure value, this warning circuit 11 is preset with an oil pressure CLV ceiling limit value and an oil pressure lower limit, when this engine oil pressure value during greater than this oil pressure CLV ceiling limit value this warning circuit 11 open these alarms 3 to carry out an alarm for high voltage, when this engine oil pressure value during less than this oil pressure lower limit this warning circuit 11 open these alarms 3 to carry out a low pressure alarming.
Wherein, this output unit 4 can adopt controls instrument in one, shows this engine oil pressure value by the pointer on control instrument in this.This alarm 3 can adopt a tutorial light, and this alarm for high voltage and this low pressure alarming are respectively one first and dodge code and one second sudden strain of a muscle code.Hold intelligiblely, this alarm 3 also can adopt some other conventional equipment, such as adopting a buzzer to report to the police by sound, and this alarm for high voltage can be set equally and this low pressure alarming is different sound.
When the oil pressure appearance was abnormal, warning can be persistency, abnormal conditions was not reacted because not perceiving for the moment to report to the police to avoid the user.And be less than or equal to this oil pressure CLV ceiling limit value and during more than or equal to this oil pressure lower limit, namely in the situation that oil pressure is got back to normal level, this warning circuit 11 is closed this alarm 3 when this engine oil pressure value, stop the warning that continues.
Preferably, connect by the KWP2000 bus between this warning circuit 11 and this alarm 3, connect by CAN bus (controller local area network's bus) between this transmission interface 12 and this output unit 4.
with reference to shown in Figure 2, the engine oil pressure protective system of the present embodiment is compared with embodiment 1, difference only is: this engine oil pressure protective system also comprises a torque limiter, when this engine oil pressure value during greater than this oil pressure CLV ceiling limit value or less than this oil pressure lower limit, this warning circuit 11 is opened these torque limiters, with the torque limited of motor output in a predetermined torque scope, and this electronic controller 1 also comprises an alarm control circuit 13, this engine oil pressure protective system also comprises an engine rotation speed sensor 5 and an engine water temperature sensor 6 that is connected with the input end of this electronic controller 1, this engine rotation speed sensor 5 and this engine water temperature sensor 6 are respectively used to detect in real time engine speed and engine water temperature and are sent to this alarm control circuit 13, this alarm control circuit 13 is preset with an engine speed threshold values and an engine water temperature threshold values, engine speed less than this engine speed threshold values or engine water temperature during less than this engine water temperature threshold values this alarm control circuit 13 close this warning circuit 11, in engine speed more than or equal to this engine speed threshold values, and engine water temperature during more than or equal to this engine water temperature threshold values this alarm control circuit 13 open these warning circuits 11.
This torque limiter provides a kind of active salvo; namely when detect oil pressure abnormal after, even the user does not carry out any controlling, this warning circuit 11 still can initiatively be opened this torque limiter; with the moment of torsion of limiting engine output, thereby reach the effect of initiatively protecting motor.
Those skilled in the art are to be understood that, in the situation that engine speed is very low, oil pressure is lower than normal working, and the oil pressure that therefore records this moment should be lower than normal state, and this moment can't be as judging whether the oil lubricating system has abnormal foundation to the detection of oil pressure.Therefore adopt above-mentioned setting, confirm with the running state to motor at first by detecting engine speed and engine water temperature, can save unnecessary alarm procedure.And in order to confirm whether motor is in normal working, can be set to the engine idle value by this engine speed threshold values, the water temperature when this engine water temperature threshold values is set to motor and is in idling mode.Concrete numerical value can be determined according to routine setting or the empirical value of related domain by those skilled in the art.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these mode of executions under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection domain of the present utility model.
Claims (7)
1. engine oil pressure protective system, it is characterized in that, comprise an electronic controller, an oil pressure sensor that is connected with the input end of this electronic controller, and an alarm that is connected with the output terminal of this electronic controller and an output unit, this oil pressure sensor is used for detecting in real time the engine oil pressure of motor and obtaining an engine oil pressure value, one transmission interface of this electronic controller and a warning circuit receive this engine oil pressure value from this oil pressure sensor respectively, this transmission interface also is used for this engine oil pressure value is sent to this output unit to export this engine oil pressure value, this warning circuit is preset with an oil pressure CLV ceiling limit value and an oil pressure lower limit, when this engine oil pressure value during greater than this oil pressure CLV ceiling limit value this warning circuit open this alarm to carry out an alarm for high voltage, when this engine oil pressure value during less than this oil pressure lower limit this warning circuit open this alarm to carry out a low pressure alarming.
2. engine oil pressure protective system as claimed in claim 1, is characterized in that, when this engine oil pressure value is less than or equal to this oil pressure CLV ceiling limit value and during more than or equal to this oil pressure lower limit, this warning circuit is closed this alarm.
3. engine oil pressure protective system as claimed in claim 1; it is characterized in that; this engine oil pressure protective system also comprises a torque limiter; when this engine oil pressure value during greater than this oil pressure CLV ceiling limit value or less than this oil pressure lower limit; this warning circuit is opened this torque limiter, with the torque limited of motor output in a predetermined torque scope.
4. engine oil pressure protective system as claimed in claim 1, is characterized in that, connects by a kind of bus for automobile failure diagnosis between this warning circuit and this alarm, connects by the CAN bus between this transmission interface and this output unit.
5. engine oil pressure protective system as described in any one in claim 1-4, it is characterized in that, this electronic controller also comprises an alarm control circuit, this engine oil pressure protective system also comprises an engine rotation speed sensor and an engine water temperature sensor that is connected with the input end of this electronic controller, this engine rotation speed sensor and this engine water temperature sensor are respectively used to detect in real time engine speed and engine water temperature and are sent to this alarm control circuit, this alarm control circuit is preset with an engine speed threshold values and an engine water temperature threshold values, engine speed less than this engine speed threshold values or engine water temperature during less than this engine water temperature threshold values this alarm control circuit close this warning circuit, in engine speed more than or equal to this engine speed threshold values, and engine water temperature during more than or equal to this engine water temperature threshold values this alarm control circuit open this warning circuit.
6. engine oil pressure protective system as claimed in claim 1, is characterized in that, this output unit is to control instrument in one.
7. engine oil pressure protective system as claimed in claim 1, is characterized in that, this alarm is a tutorial light, and this alarm for high voltage and this low pressure alarming are respectively one first and dodge code and one second sudden strain of a muscle code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216487 CN203008992U (en) | 2013-04-25 | 2013-04-25 | Engine oil pressure protection system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216487 CN203008992U (en) | 2013-04-25 | 2013-04-25 | Engine oil pressure protection system of engine |
Publications (1)
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| CN203008992U true CN203008992U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320216487 Expired - Lifetime CN203008992U (en) | 2013-04-25 | 2013-04-25 | Engine oil pressure protection system of engine |
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| Country | Link |
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| CN (1) | CN203008992U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529822A (en) * | 2013-10-15 | 2014-01-22 | 北京经纬恒润科技有限公司 | Method and device for detecting vehicle failure |
| CN110926553A (en) * | 2019-12-13 | 2020-03-27 | 深圳市元征科技股份有限公司 | Vehicle engine oil consumption detection method and device, vehicle-mounted equipment and storage medium |
| CN111017059A (en) * | 2019-12-19 | 2020-04-17 | 三一重机有限公司 | Wheel body internal pressure control system, engineering machinery and control method |
| CN111911262A (en) * | 2020-09-22 | 2020-11-10 | 浙江新柴股份有限公司 | Engine oil pressure control method and corresponding engine protection device |
-
2013
- 2013-04-25 CN CN 201320216487 patent/CN203008992U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529822A (en) * | 2013-10-15 | 2014-01-22 | 北京经纬恒润科技有限公司 | Method and device for detecting vehicle failure |
| CN103529822B (en) * | 2013-10-15 | 2016-04-13 | 北京经纬恒润科技有限公司 | A kind of vehicle failure detection method and device |
| CN110926553A (en) * | 2019-12-13 | 2020-03-27 | 深圳市元征科技股份有限公司 | Vehicle engine oil consumption detection method and device, vehicle-mounted equipment and storage medium |
| CN111017059A (en) * | 2019-12-19 | 2020-04-17 | 三一重机有限公司 | Wheel body internal pressure control system, engineering machinery and control method |
| CN111911262A (en) * | 2020-09-22 | 2020-11-10 | 浙江新柴股份有限公司 | Engine oil pressure control method and corresponding engine protection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130619 |
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| CX01 | Expiry of patent term |