Vehicle service cart with external tow features
US-12065005-B2 · Aug 20, 2024 · US
Electric assist cart
US9045152B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9045152-B2 |
| Application number | US-201214351358-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 3, 2012 |
| Priority date | Oct 13, 2011 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electric assist cart includes: a body frame; a drive wheel; a control handle by which a user can input a driving force to the body frame; a torque sensor that detects a driving torque input to the body frame from the control handle; a controller that computes an assisting force based on the driving torque; and an electric motor that applies the assisting force to the drive wheel. The controller includes an electric current determination part that determines whether or not an electric current having a magnitude equal to or larger than a first setting value continuously flows for a first setting time, and an electric current control part that reduces a maximum value of the electric current that can be supplied to the electric motor to be smaller than the first setting value based on the determination of the electric current determination part.
First claim
Opening claim text (preview).
The embodiments of this invention in which an exclusive property or privilege is claimed are defined as follows: 1. An electric assist cart that can travel by applying an assisting force in addition to a driving force applied by an operator, comprising: a body frame where a burden can be loaded; a drive wheel provided in the body frame; a handling portion pushed and handled by an operator to input a driving force to the body frame; a torque detection part that is configured…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B62B5/0033Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9045152B2 cover?
- An electric assist cart includes: a body frame; a drive wheel; a control handle by which a user can input a driving force to the body frame; a torque sensor that detects a driving torque input to the body frame from the control handle; a controller that computes an assisting force based on the driving torque; and an electric motor that applies the assisting force to the drive wheel. The control…
- Who is the assignee on this patent?
- Kayaba Industry Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B62B5/0033. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).