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Self-driven mower

A lawn mower and self-propelled technology, applied to harvesters, motors, cutters, etc., can solve problems such as battery damage, and achieve the effects of prolonging service life, improving comfort, and reducing loss

Active Publication Date: 2013-04-03
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If the above maximum energy value is exceeded, the blade motor may stop suddenly, or the battery may be damaged

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0085] figure 1 and figure 2 A driving schematic diagram of the electric lawnmower according to the present invention varying with time t is disclosed. Apart from the control unit, the lawnmower of the present invention is of conventional construction and includes an electric blade motor for rotationally driving the mowing blades, the blade motor being operatively connected to a battery; for driving the lawnmower along the lawn to be trimmed An electric drive motor is operatively connected to the battery. refer to Figure 4 to Figure 7 As will be described, the present invention provides a control unit and components associated therewith for controlling the motion of a lawn mower via a blade motor and a drive motor. Preferably, the electric drive motor acts on at least one rear wheel.

[0086] In order to explain the purpose of the present invention more easily, in figure 1 In , it is assumed that the operator does not push the lawn mower, so the operator does not perfor...

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PUM

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Abstract

A self-propelled lawn mower has an on-board battery, an electric blade motor for rotating a grass cutting blade, said blade motor being operationally connected to the battery, an electric drive motor for propelling the lawn mower along a grass surface to be cut, said drive motor being operationally connected to the battery, and a control unit for controlling at least the operation of the electric drive motor and of the blade motor. There is provided a speed monitor for monitoring the speed of the drive motor. This monitor is also connected to the control unit. There is also provided a motion speed selector for selecting a predetermined speed for the drive motor. The motion speed selector is also connected to the control unit. A total energy monitor is provided for monitoring the total energy consumption of the battery. The total energy consumption is the electrical energy consumed by the drive motor plus the electrical energy consumed by the blade motor. The total energy monitor is also operationally connected to the control unit. The user can select a predetermined maximum energy value by means of a maximum energy selector, which is operationally connected to the control unit. The control unit is designed to keep the speed of the lawn mower on the predetermined speed value, independently of the pushing force of the user, and to reduce the total energy as soon as the total energy exceeds the predetermined maximum energy value. The lawn mower affords a comfortable operation for the user, and the battery is protected from overload.

Description

technical field [0001] The present invention relates to an electric lawnmower, especially a self-propelled lawnmower, comprising an on-board battery; an electric blade motor for rotationally driving a mowing blade, the blade motor being operatively connected to the battery; The drive motor is used to drive the lawn mower to move along the lawn that needs to be trimmed, and the drive motor is operatively connected to the battery; the control unit is used to control the operation of the electric drive motor, thereby controlling the movement of the lawn mower. Background technique [0002] No. 5,442,901 of U.S. Publication Patent discloses a lawnmower, which comprises a chassis; at least three wheel pivots are arranged on the chassis so that the chassis is arranged on the lawn that needs to be trimmed; mowing blades; An electric blade motor on the chassis, the blade motor has a rotary output and is operatively connected to the mowing blade to drive the mowing blade to rotate re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/68G05B19/04G05D13/62
CPCB60L11/1851B60L2200/40B60L15/00A01D34/78Y02T10/705A01D34/006B60L1/003A01D69/02Y02T10/7005B60L58/10Y02T10/64Y02T10/70
Inventor 强尼·鲍瑞那图
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD