Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Controller of power transmission device for vehicle

A power transmission device and control device technology, which is applied to the layout of multiple different prime movers, power devices, control devices, etc. of a general power device, can solve the problem of reducing vehicle acceleration, and achieve the effect of suppressing the reduction of acceleration

Inactive Publication Date: 2011-10-19
TOYOTA JIDOSHA KK
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors of the present invention have newly discovered that in the prior art as described above, there is a problem that when acceleration is performed using the power output from the second electric motor included in the electric differential unit, due to the rotational inertia of the first electric motor, Accelerates or decelerates as the rotational speed of this second electric motor changes, so part of the power output from the above-mentioned second electric motor is used as inertial torque (moment of inertia) generated in its first electric motor, thereby reducing vehicle acceleration

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
  • Controller of power transmission device for vehicle
  • Controller of power transmission device for vehicle
  • Controller of power transmission device for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] figure 1 It is a schematic diagram illustrating an example of the configuration of a power transmission device for a hybrid vehicle to which the present invention is suitably applied. Should figure 1 The power transmission device 10 shown is for transmitting the power output from the engine 12 as a driving force source to the drive wheels 44 (refer to Figure 7 ) mechanism, for example, is applicable to a FR (front engine, rear wheel drive) type vehicle installed vertically in the vehicle, and is provided in series with a transmission case 14 (hereinafter referred to as a non-rotating member) mounted on the vehicle body. On the common shaft center in the box 14): the input shaft 16, which is connected to the output shaft (crankshaft) of the above-mentioned engine 12; Absorbing dampers (vibration damping devices) and the like are indirectly connected to the input shaft 16 ; Connected in series; the output shaft 24 is connected to the automatic transmission part 22 . ...

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

This object aims to provide a controller of a power transmission device for a vehicle, which includes an electric differential section in which loss of acceleration can be suppressed during acceleration of the vehicle. This controller performs inertia torque compensation control, in which a compensation torque (?Tm1) for reducing the inertia torque (Tit) that is generated in a first motor (M1) due to changes in the rotational speed of a second motor (M2) during acceleration of a vehicle, thereby suppressing reduction in power outputted from the second motor (M2) and keeping a sufficient acceleration performance. In conclusion, a controller of the power transmission devices (10, 30) for a vehicle having electric differential sections (18, 34) capable of suppressing loss of acceleration controlling of the power transmission devices (10, 30) for a vehicle having electric differential sections (18, 34) during acceleration of a vehicle can be provided.

Description

technical field [0001] The present invention relates to a control device for a power transmission device for a hybrid type vehicle including an electric differential unit, and particularly to an improvement for suppressing a decrease in acceleration when the vehicle is accelerated. Background technique [0002] There is known a power transmission device for a vehicle including an electric differential portion including a differential mechanism including a first rotating element and a second rotating element connected to an engine as an input rotating member , and a third rotating element as an output rotating member; a first electric motor connected to the first rotating element; and a second electric motor connected to and from the third The power transmission path from the rotating element to the drive wheel, the electric differential portion controls the differential state between the rotational speed of the second rotating element and the rotating speed of the third rota...

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): B60W10/08B60K6/445B60L11/14B60W20/00B60L50/16
CPCB60K1/02B60K6/365B60K6/445B60L2240/421B60L2240/423B60L2240/441B60W10/06B60W10/08B60W20/00B60W2510/0638B60W2510/081B60W2510/244B60W2520/10B60W2520/28B60W2530/10B60W2710/0666B60W2710/083Y02T10/62Y02T10/64Y02T10/72B60W2510/088
Inventor 今村达也田端淳今井惠太松原亨熊崎健太
Owner TOYOTA JIDOSHA KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com