Method for displaying the operating range of an electric drive vehicle, and display
US-9221355-B2 · Dec 29, 2015 · US
Electric powered vehicle
US2016114697A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016114697-A1 |
| Application number | US-201514923727-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 27, 2015 |
| Priority date | Oct 27, 2014 |
| Publication date | Apr 28, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An electric powered vehicle includes: a motor; an inverter configured to convert electric power from a battery to drive the motor; a transmission configured to shift the rotation output of the motor at a variable transmission gear ratio; and a controller configured to control the inverter to control the driving of the motor and to control a change in the shift gear stage, and to perform high surge region avoidance control for changing the gear ratio of the transmission to change a motor rotation speed while maintaining a vehicle speed and changing an operation point outside a high surge region, when the operation point of the motor enters the high surge region where the inverter is controlled by a PWM overmodulation control system, and the high surge region is defined to be equal to or higher than a predetermined rotation speed and equal to or less than predetermined torque.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electric powered vehicle comprising: a motor; an inverter configured to convert electric power from a battery to drive the motor; a transmission configured to shift a rotation output of the motor at a variable transmission gear ratio; and a controller configured to control the inverter to control the driving of the motor and to control a change in a shift gear stage of the transmission, the controller being configured to perform high surge region avoidance control for changing the transmission gear ratio of the transmission to change a motor rotation speed while maintaining a vehicle speed and changing an operation point outside a high surge region, when the operation point of the motor enters the high surge region where the inverter is controlled by a PWM overmodulation control system, and the high surge region is defined to be equal to or higher than a predetermined rotation speed and equal to or less than predetermined torque. 2 . The electric powered vehicle according to claim 1 , wherein the controller is configured to change a range of the high surge region according to motor temperature, atmospheric pressure, or an inverter input voltage. 3 . The electric powered vehicle according to claim 1 , wherein the controller is configured to relax a condition for performing the high surge region avoidance control during steady traveling with little fluctuation in the vehicle speed.
Assignees
Inventors
Classifications
- B60L11/1861Primary
Operations & Transport · mapped topic
- B60L50/61Primary
by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles · CPC title
- B60L58/12Primary
responding to state of charge [SoC] · CPC title
Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title
Energy storage systems for electromobility, e.g. batteries · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016114697A1 cover?
- An electric powered vehicle includes: a motor; an inverter configured to convert electric power from a battery to drive the motor; a transmission configured to shift the rotation output of the motor at a variable transmission gear ratio; and a controller configured to control the inverter to control the driving of the motor and to control a change in the shift gear stage, and to perform high su…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60L11/1861. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Apr 28 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).