Unlock instant, AI-driven research and patent intelligence for your innovation.

Electric power dissipation control

A technology of power dissipation and battery control, which is applied in the direction of control drive, control device, battery/fuel cell control device, etc., and can solve problems affecting the stability of driving experience

Inactive Publication Date: 2014-11-19
CHRYSLER GROUP LLC
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This affects the smoothness of the driving experience as perceived and felt by the driver

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric power dissipation control
  • Electric power dissipation control
  • Electric power dissipation control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] What this article describes is such a mechanism: For hybrid vehicles and pure electric vehicles (compared with conventional vehicles with internal combustion engines), under constraint conditions, maintain consistent driving performance. The disclosed mechanism provides a path to dissipate the power generated by the braking torque without generating any power that is fed back to the battery. In addition, in some cases, the mechanism can even draw current from the battery while still generating the desired braking torque of the electric motor. In some cases, it is advisable to draw current from the battery to discharge the battery (to prevent battery overcharging), or to warm up the battery (ie, if the battery is cold, the battery charging power limit is low ), so that the battery can provide full power faster.

[0015] When the motor provides the required braking torque of the electric motor, the embodiments described herein dissipate the power generated by the braking to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and apparatus for controlling an electric motor. An electric motor apparatus has an electric motor with motor stator windings, a battery, battery control module coupled to the battery and configured to monitor and detect a state of the battery, and a motor control unit coupled to the battery and the batter control module and being configured to select an operation of the electric motor based on a signal from the battery control module representing the state of the battery. The motor control unit selects a normal motor control operation, a power dissipation motor control operation, or a discharge operation. During the power dissipation motor control operation, power from brake torque is dissipated in the motor stator windings of the electric motor.

Description

Technical field [0001] The present invention relates to the fields of hybrid electric vehicles (HEV) and pure electric vehicles (BEV), and more specifically, to electric power dissipation systems and methods for hybrid electric vehicles and pure electric vehicles. Background technique [0002] Permanent magnet synchronous motors (PMSM) are widely used in hybrid vehicles and pure electric vehicles. Among the permanent magnet synchronous motors, due to the high power density, high efficiency, and wide speed range of an in-line permanent magnet (IPM) motor, it is the most commonly used motor for HEV / BEV applications. [0003] When a hybrid vehicle or a pure electric vehicle is in electric mode (that is, the mode when the car only runs an electric motor without the assistance of an internal combustion engine), the car needs to give the driver similar driving performance compared to a conventional car using only an internal combustion engine . One of the desired characteristics of hyb...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/00B60W20/00
CPCY02T10/642B60L15/2009B60L7/28B60W20/1062Y02T10/7005B60L2240/421B60L3/0046B60L11/1861Y10S903/903Y02T10/7044B60L2220/14Y02T10/7216B60L2210/10Y02T10/705B60L11/1805B60L2240/423B60L2240/545B60L50/52B60L58/13B60L58/15Y02T10/64Y02T10/70Y02T10/72
Inventor 冰·程戈罗·塔马伊
Owner CHRYSLER GROUP LLC