CN105065128A - Device capable of quickly increasing rotating speed of engine - Google Patents
Device capable of quickly increasing rotating speed of engine Download PDFInfo
- Publication number
- CN105065128A CN105065128A CN201510418005.0A CN201510418005A CN105065128A CN 105065128 A CN105065128 A CN 105065128A CN 201510418005 A CN201510418005 A CN 201510418005A CN 105065128 A CN105065128 A CN 105065128A
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- China
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- target
- rotating speed
- torque
- pump
- engine
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention provides a device capable of quickly increasing the rotating speed of an engine. The device comprises the engine provided with a booster, a variable-capacity hydraulic pump driven by the engine, a hydraulic brake driven by working oil sprayed out from the hydraulic pump, a boosting pressure detector for detecting the boosting pressure of the booster and a controller used for controlling the absorption torque, namely the pump torque of the hydraulic pump. During the period that the rotating speed of the engine reaches a target rotating speed from a rotating speed lower than the target rotating speed, the controller is used for solving the target pump torque through a preset relation between the no-load rotating speed of the engine and the target pump torque and correcting the target pump torque to limit the actual pump torque as the corrected target pump torque on the basis of boosting pressure detected by the boosting pressure detector in the mode that the lower the boosting pressure is, the smaller the target pump torque gets.
Description
Technical field
The present invention relates to a kind of device making engine speed increase rapidly, belong to field of mechanical technique.
Background technique
Being equipped on the rotating speed during motor of excavator zero load, usually accelerating that the operation of engine speed setting device of (accelerationpotentiometer) is counted in position, the selection (have when multiple decision key element and select the value of low level) etc. of work pattern decides by being called as.The rotating speed of this decision as target engine speed, is controlled the fuel injection amount in described motor by excavator.On the other hand, possesses the excavator of automatic retarding (auto-deceleration) function, when the deceleration conditions preset (state continuance such as not having bar to operate fixed time) is set up, carry out making engine speed to drop to namely the slow down automatic retarding of rotating speed of setting speed to control, in addition, when deceleration conditions is false, such as, when having had bar to operate, carry out that engine speed is resetted to the deceleration that rotating speed of target rises and control.For the above-mentioned excavator possessing automatic retarding function, if slow down reset time operational brake, then pump load can cause the rising of engine speed to be difficult to the situation of carrying out smoothly, namely exist arrive rotating speed of target postpone problem.As this solution decision-making, flat No. 5-312082 of Japanese Laid-Open Patent Publication discloses: by the absorption torque of oil hydraulic pump that is pump running torque being suppressed to minimum torque when the rotating speed of motor rises, thus reduction engine load, accelerate the rising of engine speed.But so pump running torque is suppressed to minimum countermeasure, during causing before engine speed raises completely, the problem of break action and excavator operation cannot be carried out substantially.When this problem is not limited to slow down and resets, when comprising engine start, also may produce when making motor rise to rotating speed of target from the slow-speed of revolution.
Summary of the invention
The invention provides a kind of device making engine speed increase rapidly, can according to the general layout reasonable Arrangement position of power equipment operation bench, flexibly easy for installation, be provided separately with steering wheel, precise control, avoids the device that the made engine speed of misoperation in use rises rapidly.
For solving above technical problem, the invention provides following technological scheme: the device that engine speed rises rapidly can be made, the motor of band pressurized machine; By the oil hydraulic pump of described engine-driven variable capacity type; The hydraulic brake driven by the working oil sprayed from described oil hydraulic pump; Detect the boost pressure detector of described pressurized machine; And to the controller that absorption torque that is the pump running torque of described oil hydraulic pump control, wherein, during the rotating speed of described motor arrives rotating speed of target from the rotating speed lower than rotating speed of target, described controller obtains target pump running torque by the relation of the engine no-load rotating speed that presets and target pump running torque, and based on the boost pressure detected by described boost pressure detector, with target pump running torque described in the mode correction that the lower described target pump running torque of this boost pressure is less, be revised described target pump running torque by the pump torque limit of reality.The automatic retarding carrying out when the deceleration conditions preset is set up making engine speed be reduced to setting speed controls, after described automatic retarding control starts, the described deceleration conditions invalid moment carries out the deceleration reset control making engine speed increase to target engine speed, when described deceleration resets control, be revised described target pump running torque by described pump torque limit.
This device making engine speed increase rapidly that the present invention relates to, in engine speed from the rotating speed lower than described rotating speed of target to this rotating speed of target rising limit pump running torque, can make engine speed rise to rotating speed of target rapidly.And, owing to being not pump running torque was suppressed for minimum before engine speed raises completely always, but the rising of boost pressure according to the index as engine torque, relax the limited degree of pump running torque, so while making engine speed reliably rise, brakeage to a certain degree also can be guaranteed.Therefore the present invention can realize the rapid rising of engine speed and can carry out the action of described hydraulic brake during this period.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention.
Embodiment
As shown in Figure 1, the device that engine speed rises rapidly can be made, the motor of band pressurized machine; By the oil hydraulic pump of described engine-driven variable capacity type; The hydraulic brake driven by the working oil sprayed from described oil hydraulic pump; Detect the boost pressure detector of described pressurized machine; And to the controller that absorption torque that is the pump running torque of described oil hydraulic pump control, wherein, during the rotating speed of described motor arrives rotating speed of target from the rotating speed lower than rotating speed of target, described controller obtains target pump running torque by the relation of the engine no-load rotating speed that presets and target pump running torque, and based on the boost pressure detected by described boost pressure detector, with target pump running torque described in the mode correction that the lower described target pump running torque of this boost pressure is less, be revised described target pump running torque by the pump torque limit of reality.The automatic retarding carrying out when the deceleration conditions preset is set up making engine speed be reduced to setting speed controls, after described automatic retarding control starts, the described deceleration conditions invalid moment carries out the deceleration reset control making engine speed increase to target engine speed, when described deceleration resets control, be revised described target pump running torque by described pump torque limit.
This device making engine speed increase rapidly that the present invention relates to, in engine speed from the rotating speed lower than described rotating speed of target to this rotating speed of target rising limit pump running torque, can make engine speed rise to rotating speed of target rapidly.And, owing to being not pump running torque was suppressed for minimum before engine speed raises completely always, but the rising of boost pressure according to the index as engine torque, relax the limited degree of pump running torque, so while making engine speed reliably rise, brakeage to a certain degree also can be guaranteed.Therefore the present invention can realize the rapid rising of engine speed and can carry out the action of described hydraulic brake during this period.
Claims (2)
1. the device that engine speed can be made to increase rapidly, is characterized in that, comprises the motor of band pressurized machine; By the oil hydraulic pump of described engine-driven variable capacity type; The hydraulic brake driven by the working oil sprayed from described oil hydraulic pump; Detect the boost pressure detector of described pressurized machine; And to the controller that absorption torque that is the pump running torque of described oil hydraulic pump control, wherein, during the rotating speed of described motor arrives rotating speed of target from the rotating speed lower than rotating speed of target, described controller obtains target pump running torque by the relation of the engine no-load rotating speed that presets and target pump running torque, and based on the boost pressure detected by described boost pressure detector, with target pump running torque described in the mode correction that the lower described target pump running torque of this boost pressure is less, be revised described target pump running torque by the pump torque limit of reality.
2. a kind of device making engine speed increase rapidly according to claim 1, it is characterized in that: described controller, the automatic retarding carrying out when the deceleration conditions preset is set up making engine speed be reduced to setting speed controls, after described automatic retarding control starts, the described deceleration conditions invalid moment carries out the deceleration reset control making engine speed increase to target engine speed, when described deceleration resets control, be revised described target pump running torque by described pump torque limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418005.0A CN105065128A (en) | 2015-07-16 | 2015-07-16 | Device capable of quickly increasing rotating speed of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418005.0A CN105065128A (en) | 2015-07-16 | 2015-07-16 | Device capable of quickly increasing rotating speed of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105065128A true CN105065128A (en) | 2015-11-18 |
Family
ID=54494605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510418005.0A Pending CN105065128A (en) | 2015-07-16 | 2015-07-16 | Device capable of quickly increasing rotating speed of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065128A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05312084A (en) * | 1992-05-08 | 1993-11-22 | Komatsu Ltd | Controller of hydraulic driving machine |
| JPH08277732A (en) * | 1995-04-05 | 1996-10-22 | Hitachi Constr Mach Co Ltd | Driving controller for construction equipment |
| CN102713089A (en) * | 2009-12-24 | 2012-10-03 | 斗山英维高株式会社 | Power control apparatus and power control method for construction machinery |
| CN104033264A (en) * | 2013-03-05 | 2014-09-10 | 神钢建机株式会社 | Construction machine |
-
2015
- 2015-07-16 CN CN201510418005.0A patent/CN105065128A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05312084A (en) * | 1992-05-08 | 1993-11-22 | Komatsu Ltd | Controller of hydraulic driving machine |
| JPH08277732A (en) * | 1995-04-05 | 1996-10-22 | Hitachi Constr Mach Co Ltd | Driving controller for construction equipment |
| CN102713089A (en) * | 2009-12-24 | 2012-10-03 | 斗山英维高株式会社 | Power control apparatus and power control method for construction machinery |
| CN102713089B (en) * | 2009-12-24 | 2015-03-25 | 斗山英维高株式会社 | Power control apparatus for construction machinery |
| CN104033264A (en) * | 2013-03-05 | 2014-09-10 | 神钢建机株式会社 | Construction machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Liu Dong New District of Liuzhou city the Guangxi Zhuang Autonomous Region 545000 double Renlu No. 10 Guantang R & D center 2 Building No. 705 (Liu Zhougao and Secretary of Commerce Co. Ltd. hosted) Applicant after: LIUZHOU SHOUGUANG TECHNOLOGY CO., LTD. Address before: 545000 the Guangxi Zhuang Autonomous Region road Liunan District Liuzhou City Lake No. 16 Applicant before: LIUZHOU SHOUGUANG TECHNOLOGY CO., LTD. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
|
| RJ01 | Rejection of invention patent application after publication |