Harvesters – Cutting and catching – Catchers
Reexamination Certificate
2007-03-20
2007-03-20
Engle, Patricia (Department: 3671)
Harvesters
Cutting and catching
Catchers
C056S194000, C056S01020R
Reexamination Certificate
active
10947919
ABSTRACT:
In a control system of a lawn mower having an internal combustion engine controlled to a desired engine speed by a throttle actuator, a blade connected to the engine to be driven to cut grass, an engine output is estimated based on a detected throttle position and the desired engine speed, and when the estimated engine output exceeds a prescribed value, the grass bag is determined to be full of cut grass. With this, a full grass bag can be detected and the operator informed without providing a dedicated sensor. In addition, a blade switch that inputs a drive instruction to drive the blade and a running switch that inputs a running instruction to propel the lawn mower are provided, and the desired engine speed is set to a first speed when neither the drive instruction nor the running instruction is inputted, but is changed immediately to a second speed, set higher than the first speed, when the drive instruction is inputted, or is changed to the second speed gradually, when the running instruction is inputted, whereby fuel efficiency and operability are improved.
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Fukushima Tomoki
Katsuragawa Shinichi
Kobayashi Hiroshi
Matsuda Hayato
Blackman William D.
Carrier Joseph P.
Carrier Blackman & Associates P.C.
Engle Patricia
Honda Motor Co. Ltd.
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