Dual Battery Identification in Riding Lawn Mowers for Longer Runtime
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Solution Overview
Problem
Existing outdoor walking equipment, such as riding lawn mowers, face limitations in energy storage capacity and flexibility, as they rely on fixed batteries that cannot meet the energy demands for prolonged use and diverse outdoor tasks, especially for professional users.
Innovation Solution
The implementation of a dual energy storage system comprising a detachable first energy storage device and a fixed second energy storage device, where the first device can be used for extended operation and adapted to other power tools, and the second device provides high energy capacity and compactness, allowing for flexible power supply and extended working times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a built-in fixed battery is used as the energy storage device, then the device complexity is reduced and ease of operation is improved, but the energy storage capacity is limited and cannot meet the need for prolonged outdoor work
Solution Approach 1:
The energy storage system is segmented into a first detachable energy storage device and a second fixed energy storage device. The second device provides base energy capacity while the first device can be detached and replaced to extend total working time, resolving the contradiction between compact fixed storage and prolonged operation duration.
2Quantity of substance
If detachable batteries are installed on the riding lawn mower to extend energy storage, then the energy capacity increases, but the device size becomes large and cost increases
Solution Approach 1:
The patent merges a compact second fixed energy storage device integrated into the mower body with a first detachable energy storage device. This combination provides extended energy capacity without requiring a single large battery, as the fixed device maintains compactness while the detachable device adds capacity efficiently.
3Adaptability or versatility
If a single fixed battery is used, then the device structure is simple and cost is reduced, but the adaptability to various outdoor tasks is insufficient
Solution Approach 1:
The first detachable energy storage device is designed with universal compatibility to work with multiple types of outdoor power tools including lawn mowers, trimmers, blowers, and sweepers. This single detachable device provides multi-functionality across different tasks while maintaining simple integration through standardized mounting and electrical connections.
4Duration of action of moving object
If a detachable energy storage device is added to extend working time, then the energy capacity increases, but the device complexity increases
Solution Approach 1:
The first energy storage device is extracted as a separate detachable unit from the main mower body. This extraction allows the complex energy storage function to be isolated in a modular component that can be independently managed, installed, and removed without affecting the core mower system, thus minimizing overall system complexity while extending working time.
Data Source
AI summary
A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least one of the energy storage devices to at least one of the motors; and a charging circuit to charge at least one of the energy storage devices. The riding lawn mower further includes a first identification terminal engageable with the second energy storage device and a second identification terminal engageable with the first energy storage device; the riding lawn mower identifies a type of the energy storage devices through the identification terminals and selectively connects them to the driving circuit and the charging circuit.