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

Control device of vehicle

A technology for control devices and vehicles, applied in control devices, transmission devices, electrical controls, etc., can solve problems such as difficult to achieve fuel efficiency and driving performance at the same time, and achieve the effects of realizing driving performance, improving control, and expanding the scope of implementation

Active Publication Date: 2018-07-27
TOYOTA JIDOSHA KK
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to simultaneously achieve improvement in fuel efficiency and improvement in drivability based on slip control

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
  • Control device of vehicle
  • Control device of vehicle
  • Control device of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is a figure explaining the schematic structure of the vehicle 10 to which this invention is applied, and is a figure explaining the main part of the control system used for various controls in the vehicle 10. exist figure 1 Among them, a vehicle 10 includes an engine 12 , drive wheels 14 , and a vehicle power transmission device 16 (hereinafter referred to as power transmission device 16 ) provided on a power transmission path between the engine 12 and the drive wheels 14 . The power transmission device 16 includes a housing 18 (see figure 2 ) within the torque converter 20 and the automatic transmission 22; the transmission output gear 24, which is an output rotating member of the automatic transmission 22, and the differential gear device 26 connected to the ring gear 26a; a pair of axle shafts 28 connected to the differential gear device 26 Wait. In the automatic transmission 22 , power output from the engine 12 is sequentially transmitted from the cr...

Embodiment 2

[0056] Figure 8 The illustrated electronic control device (corresponding to a control device) 57 includes a slide control unit 122 corresponding to a slide control unit and a fuel cut control unit 124 corresponding to a fuel cut control unit as main parts of its control function. The slip control unit 122 is composed of a deceleration deflection control start condition judgment unit 100, an engine torque calculation unit 102, a slip establishment time calculation unit 114 corresponding to the slip establishment time calculation unit, a deceleration deflection control unit 106, and a slip establishment time determination unit 116. constitute. In addition, the fuel cut control unit 124 includes an engine FC determination unit 110 and an engine control unit 112 . In the first embodiment, the sliding pressure calculating unit 104 calculates the sliding pressure Pca of the unclamping loss, and the sliding pressure judging unit 108 judges whether the sliding pressure is above the ...

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

The invention provides a control device of a vehicle. The vehicle has a torque converter arranged between an engine and an automatic transmission and performs control of a slip state of a lockup clutch and fuel cut during deceleration running. The control device of the vehicle can expand an area where control of a slip state and fuel cut can be coordinately implemented. Slip pressure (Pca) of thelockup clutch (32) with no clamping loss or slip establishment time (tca) when slip pressure with no clamping loss is reached is judged according to engine torque (Te) and oil temperature (Toil), slippressure (Pc) of the lockup clutch (32) becomes pressure (Pca) which does not make engine speed (Ne) reduce or a time point of the slip establishment time (tca) is reached, so that fuel cut (FC) is allowed, thus the area where fuel cut (FC) can be performed can be increased, and good drivability can be maintained.

Description

technical field [0001] The present invention relates to a vehicle control device, and more particularly, to a technique capable of controlling the slip pressure of a lockup clutch and the fuel cutoff of an engine. Background technique [0002] There is known a control device for a vehicle that includes: an engine; an automatic transmission; a torque converter provided between the engine and the automatic transmission; and a lock-up clutch that directly connects an input member and an output member. In the torque converter, the control device of the vehicle includes a slip control unit that controls a slip pressure of the lock-up clutch during deceleration running, and a fuel cut control unit that controls the engine pressure during deceleration running. fuel cutoff. For example, the control device for a vehicle disclosed in Patent Document 1 is such a device. In the control device for a vehicle disclosed in Patent Document 1, when the vehicle is decelerating, slip control ...

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): F16H61/14F02D41/12
CPCF02D41/12F16H61/143B60W10/02B60W30/18072B60W2030/18081B60W2710/06B60W2710/0644B60W2710/0655B60W10/06B60W2710/025B60W10/026B60W30/18136B60W2510/0241B60W2510/0291B60W2510/0638B60W2510/0657B60W2710/0627
Inventor 松原圭吾大田峻士近藤真实
Owner TOYOTA JIDOSHA KK