EP0166546A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for regulating the speed of rotation of an engine mounted on a construction vehicle
Assignee: Komatsu Ltd
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Filing: 1985-05-31
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Granted: —
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Expires: 2005-05-31
Abstract
Abstract A construction vehicle has an engine mounted thereon and one or more work implements controllable by corresponding control valves. A plurality of operating levers are associated with the control valves and with the control system of the vehicle. Deceleration control of the engine is achieved by reducing the rate of revolution of the engine to a first level immediately upon all the operating levers being shifted to their respective neutral positions, then maintaining the engine at this first level for a predetermined period of time, whereafter the rate of revolution is further reduced to a second level lower than the first.
Inventors
- 👤 Yokinobu Matsuda
- 👤 Takayasu Inui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 06:17
CPC Classifications
F; F02; F02D; F02D31/00; F02D29/00; F02D29/04; E; E02; E02F; E02F9/00; E02F9/20; E02F9/22; E02F9/2246
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
A method of controlling an engine mounted on a construction vehicle having one or more work implements controllable by corresponding control valves, and a plurality of operating levers associated with said control valves and the control system of said vehicle, the method being characterized by the steps of reducing the rate of revolution of the engine to a first level immediately upon all said operating levers being shifted to their respective neutral positions, maintaining the engine at said first level for a predetermined period of time, and then reducing further the rate of rotation of the engine to a second level lower than the first.
Claim 2
Independent Claim
105 words
A method of controlling an engine mounted on a construction vehicle having one or more work implements controllable by corresponding control valves, and a plurality of operating levers associated with said control valves and the control system of said vehicle, the method being characterized by the steps of reducing the rate of revolution of the engine to a first level immediately upon all said operating levers being shifted to their respective neutral positions, maintaining the engine at said first level for a predetermined period of time, and then reducing further the rate of rotation of the engine to a second level lower than the first.
Claim 3
Dependent Claim
50 words
A method according to Claim 1, further characterized in that said first level is in the vicinity of the rate of revolution of the engine under earth moving operation and is a level such that changes in the engine rate of revolution give no influence on the earth moving operation.
Claim 4
Dependent Claim
29 words
A method according to Claim 1 or Claim 2, further characterized in that said second level generally corresponds to the rate of revolution of the engine under idle running.
Claim 5
Independent Claim
23 words
A method according to any preceding claim, further characterized in that said predetermined period is in the range of three to four seconds.
References Cited (Backward Citations)
FR2258529A1
Cited
GB2072260A
Cited
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