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

variable speed control device

A technology for control devices and control parts, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as inability to correctly judge vehicles

Active Publication Date: 2017-08-01
SUZUKI MOTOR CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above-mentioned conventional speed change control device has the following problems: Sometimes it cannot be correctly judged whether the vehicle is running on an uphill road, and the speed change control suitable for the gradient of the running surface on which the vehicle is running cannot be performed.

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
  • variable speed control device
  • variable speed control device
  • variable speed control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below with reference to the drawings. Such as figure 1 As shown, a vehicle 1 equipped with a transmission control device according to an embodiment of the present invention includes an internal combustion engine 2 , a hydraulic control device 3 , an automatic transmission 4 , and an ECU (Electronic Control Unit: Electronic Control Unit) 5 .

[0027] The engine 2 includes a four-stroke engine, and performs a series of four strokes including an intake stroke, a compression stroke, an expansion stroke, and an exhaust stroke while the piston reciprocates twice in the cylinder, and performs ignition during the compression stroke and the expansion stroke. .

[0028] The hydraulic control device 3 has a hydraulic circuit and a plurality of solenoid valves, and controls the automatic transmission 4 . The hydraulic control device 3 switches the flow path of hydraulic oil supplied to the automatic transmission 4 ...

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

[Problem] To provide a shift control device capable of performing shift control that is suited to the gradient of the surface upon which a vehicle is traveling, regardless of whether an air conditioning device is in an activated state or not. [Solution] If an ECU determines that an air conditioning device has transitioned from a deactivated state to an activated state (step S21), the ECU lowers a first threshold value (TH1) that is an execution condition for hill-climbing shift control (step S22) and also lowers a second threshold value (TH2) that is an execution condition for non-hill-climbing shift control (step S23), and if the ECU determines that the air conditioning device has transitioned from the activated state to the deactivated state (step S24), the ECU raises the first threshold value (TH1) (step S25) and raises the second threshold value (TH2) (step S27).

Description

technical field [0001] The present invention relates to a gear shift control device, and in detail, relates to a gear shift control device that changes gear shift control according to whether or not a vehicle goes uphill. Background technique [0002] Conventionally, a shift control device installed in a vehicle equipped with an automatic transmission determines whether the vehicle is going uphill for the purpose of preventing deterioration of drivability, and when it is judged that the vehicle is going uphill, performs a shift control different from that during normal driving. [0003] For example, Japanese Unexamined Patent Publication No. 7-71556 (Patent Document 1) proposes a shift control device that limits the minimum target engine speed of the engine as the driving load increases, and performs shift control based on the target engine speed limited by the minimum target engine speed. Also, JP-A-2002-13628 (Patent Document 2) proposes a shift control device that detects...

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 Patents(China)
IPC IPC(8): F16H61/10F16H61/02
CPCF16H61/02F16H61/10F16H2306/00F16H61/0213F16H2059/145
Inventor 佐佐木隼斗木内祐太
Owner SUZUKI MOTOR CORP