CN201306221Y - Speed limiting device of engine - Google Patents
Speed limiting device of engine Download PDFInfo
- Publication number
- CN201306221Y CN201306221Y CNU2008202308981U CN200820230898U CN201306221Y CN 201306221 Y CN201306221 Y CN 201306221Y CN U2008202308981 U CNU2008202308981 U CN U2008202308981U CN 200820230898 U CN200820230898 U CN 200820230898U CN 201306221 Y CN201306221 Y CN 201306221Y
- Authority
- CN
- China
- Prior art keywords
- engine
- speed
- storage battery
- limiting device
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The utility model relates to a speed limiting device of an engine, which belongs to the speed limiting device of an electric control engine. The speed limiting device comprises an accelerator pedal (1), a voltage stabilizer (2), a relay (3), an engine ECU (4), a PTO switch (5), a fuse (6) and a storage battery (7); the storage battery (7) is connected with the engine ECU (4) and a relay coil by the fuse (6) and the PTO switch (5); the other end of the relay coil is connected with the cathode of the storage battery; and one end of the contact of the relay is connected with the cathode of the storage battery, and the other end is connected with the accelerator pedal and the engine ECU by the voltage stabilizer. The speed limiting device has the advantages that continuous adjustment within a rotating speed range but not at a single rotating speed point is realized; only after the highest rotating speed is limited, the engine can be continuously adjusted between the idle speed and the highest rotating speed; the system has the advantages of convenient installation, economy, continuous adjustment and the like, and can serve as the engine speed limiting device of engineering vehicles.
Description
Technical field
The utility model relates to a kind of speed limiting device that is used for electric-control motor, particularly a kind of governed engine speed device.
Background technique
Motor is the power source of vehicle, for the running of car load provides power.The employed motor of engineering vehicle then comprises road running and operation two-part function: during road running, engineering vehicle is the same with general-utility car for the requirement of motor; During operation, engineering vehicle mostly is to drive hydraulic-pressure pump by motor by intermediary agency's (as gearbox, transmission shaft etc.), hydraulic system just can be carried out work, owing to be subjected to the restriction of the speed range and the hydraulic system of pump, its speed range for motor has specific (special) requirements.
Along with the enforcement of state's III/ Europe III emission standard, electric-control motor has replaced traditional mechanical formula motor, and motor has the control unit of oneself, and engine control is intelligent more, sequencing.
At present, the functional requirement that (1) motor producer can be different to motor according to the user is made amendment to the electric-control motor control program and to be met customer need.When the motor that has a speed limit function for motor self control system carries out the rotating speed restriction, limit by revising self control system program; When (2) not having the motor of speed limit function to carry out the rotating speed restriction, can only carry out Control for Speed Limitation to motor by the long-range throttle of external PTO for self control system.
For coming the limiting engine rotating speed, be only applicable to the motor of those control system band speed limit functions own, for not inapplicable with the motor of speed limit function by revising self control system program; For using the long-range throttle of PTO that motor is carried out the rotating speed restriction, can only make motor operate in certain fixed rotating speed value, can not carry out the continuous control in the certain limit to the rotating speed of motor.
The model utility content
The purpose of this utility model is to provide a kind of: be suitable for all motors, and the governed engine speed device that motor is moved in the speed range that vehicle design needs.
The purpose of this utility model is achieved in that this speed limiting device includes gas pedal (1), Voltagre regulator (2), relay (3), Engine ECU (4), PTO switch (5), safety fuse cutout (6) and storage battery (7), storage battery (7) is connected with relay coil with Engine ECU (4) with PTO switch (5) by safety fuse cutout (6), the other end of relay coil is connected with battery terminal negative, contact one end of relay is connected with the negative pole of storage battery, and the other end is connected with Engine ECU (4) with gas pedal by Voltagre regulator.
Described Voltagre regulator is reference diode or is resitstance voltage divider.
Beneficial effect: owing to adopted such scheme, utilize the voltage characteristic of reference diode, the scope of limiting engine E-Gas signal voltage, control the speed range of motor, thereby effectively solve the problem that motor moves in the desired speed scope, be suitable for all motors, and motor is moved in the speed range that vehicle design needs, reached the purpose of this utility model.
Advantage: in this model utility,, come the speed range of limiting engine work with the method for restriction throttle signal range of voltage values by at E-Gas signal output part parallel voltage-stabilizing diode and by the control mode of motor PTO switch activator.It has realized the continuous adjustment in a speed range, is not the control of single rotating speed point.As long as limit a maximum speed, motor can be adjusted between idling and maximum speed continuously.Native system has simple installation, Economy is strong, advantages such as continuous adjustment, and the governed engine speed device that can be used as engineering vehicle uses.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Among the figure 1, gas pedal; 2, reference diode; 3, relay; 4, Engine ECU; 5, PTO switch; 6, safety fuse cutout; 7, storage battery.
Embodiment
Embodiment 1: this speed limiting device includes gas pedal 1, Voltagre regulator 2, relay 3, Engine ECU 4, PTO switch 5, safety fuse cutout 6 and storage battery 7, storage battery 7 is connected with relay coil with Engine ECU 4 with PTO switch 5 by safety fuse cutout 6, the other end of relay coil is connected with battery terminal negative, contact one end of relay is connected with the negative pole of storage battery, and the other end is connected with Engine ECU 4 with gas pedal by Voltagre regulator.
Described Voltagre regulator is a reference diode.
Among the figure, Voltagre regulator is a reference diode, reference diode D1, D2 is connected in parallel on respectively on two signal output parts of gas pedal, with the grounding end of relay 3 control diodes.The coil electrode of relay is sealed on the PTO loop, by PTO switch 5 control relay break-makes, contact successively then safety fuse cutout 5, storage battery 7, gas pedal 1, Engine ECU 4.
Press the PTO switch, by the ECU signal processing, motor enters the PTO pattern, the reference diode grounding end is connected in relay operating contact adhesive simultaneously, reference diode is started working, the signal voltage value of throttle signal output terminal is subjected to the control of reference diode, and the throttle signal magnitude of voltage is limited between the 0.85-3Vdc, and then Dui Ying engine speed is then at 600-1600rpm.When getting on the bus operation, activate motor PTO pattern after, operator just can not coexist according to operating mode and freely adjust engine speed in the 600-1600rpm.
Reference diode: a kind of silicon semiconductor diode that is used for the face junction type of burning voltage amplitude, be Zener diode again.
PTO switch: PTO, the engine power output mode.The PTO switch, the switch of engine power output mode conversion.In this case, the PTO switch in the conversion of control engine power output mode also as the switch that activates the governed engine speed device.
The long-range throttle of PTO: a kind of accelerator mode control during engine operated pattern, it can only make motor operate under the fixing tachometer value.
Engine ECU: engine electronic control unit.The various sensors and the various Operational Limitss of electronic equipment collection motor that are installed on the engine block are imported ECU by signal input part, and signal outputs to the operation that each executive component is controlled motor through after the processing of Engine ECU by signal output part.
Gas pedal: the device of output engine throttle opening signal is divided into mechanical type throttle and electronic type throttle according to the difference of output signal mode.
Concrete mixer: concrete is transported to higher or longer-distance engineering vehicle by pumping installations through boom.
Embodiment 2: described Voltagre regulator is a resitstance voltage divider.
Claims (2)
1, a kind of governed engine speed device, it is characterized in that: this speed limiting device includes gas pedal (1), Voltagre regulator (2), relay (3), Engine ECU (4), PTO switch (5), safety fuse cutout (6) and storage battery (7), storage battery (7) is connected with relay coil with Engine ECU (4) with PTO switch (5) by safety fuse cutout (6), the other end of relay coil is connected with battery terminal negative, contact one end of relay is connected with the negative pole of storage battery, and the other end is connected with Engine ECU (4) with gas pedal by Voltagre regulator.
2, governed engine speed device according to claim 1 is characterized in that: described Voltagre regulator is reference diode or is resitstance voltage divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202308981U CN201306221Y (en) | 2008-12-08 | 2008-12-08 | Speed limiting device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202308981U CN201306221Y (en) | 2008-12-08 | 2008-12-08 | Speed limiting device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306221Y true CN201306221Y (en) | 2009-09-09 |
Family
ID=41098687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202308981U Expired - Fee Related CN201306221Y (en) | 2008-12-08 | 2008-12-08 | Speed limiting device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306221Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275642A (en) * | 2015-11-11 | 2016-01-27 | 潍柴动力股份有限公司 | Engine rotation speed control structure and control method thereof during rear power take-off |
| CN106414142A (en) * | 2014-07-24 | 2017-02-15 | 洋马株式会社 | Work vehicle |
-
2008
- 2008-12-08 CN CNU2008202308981U patent/CN201306221Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414142A (en) * | 2014-07-24 | 2017-02-15 | 洋马株式会社 | Work vehicle |
| CN105275642A (en) * | 2015-11-11 | 2016-01-27 | 潍柴动力股份有限公司 | Engine rotation speed control structure and control method thereof during rear power take-off |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |