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Speed control method and speed control device for automatic transmission

A technology of automatic transmission and control device, which is applied in the field of speed change control of automatic transmission and speed change control device, can solve the problems of increasing the data volume of the speed change control device, increasing the calculation load of a computing processing unit, and unusable hardware.

Inactive Publication Date: 2012-04-18
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is possible to increase the amount of data stored in the storage unit of the shift control device
In addition, the calculation load of the calculation processing section may increase, which may require a relatively long time for processing
As a result, the software may become verbose and the storage area of ​​the software may be limited
Therefore, known hardware for variable speed controls may not be available

Method used

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  • Speed control method and speed control device for automatic transmission
  • Speed control method and speed control device for automatic transmission
  • Speed control method and speed control device for automatic transmission

Examples

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Embodiment Construction

[0022] Below, refer to Figure 1 to Figure 4 , to describe the shift control method of the automatic transmission according to the embodiment. figure 1 Shown is a schematic diagram of a power train device 1 for a hybrid vehicle, which is the object of a shift control method for an automatic transmission according to the embodiment. figure 1The middle dashed arrows indicate the direction of control flow. A power train device 1 for a hybrid vehicle includes an engine 2, a clutch 3, a motor-generator 4, an automatic transmission 5, drive wheels 6, and a control system including a hybrid electronic control unit 7 (hereinafter referred to as a hybrid ECU 7). device. The engine 2, the clutch 3, the motor-generator 4, and the automatic transmission 5 are arranged in line along their common rotation axis. The drive wheels 6 are driven by the output shaft 52 of the automatic transmission 5 .

[0023] The engine 2 is designed as a known four-stroke engine. More specifically, the en...

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PUM

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Abstract

A speed control method for an automatic transmission adapted to a power train apparatus (1) for a hybrid vehicle having an engine (2), a motor-generator (4), the automatic transmission, and a speed control device (7,27,47,57) controlling the automatic transmission based on a throttle opening degree (A) of the engine and an output rotation number (NO) of the automatic transmission, the speed control method executed when the electricity is simultaneously generated while the vehicle is driven by the engine, includes a power generation torque calculating process (S5) of calculating a power generation torque (TG) necessary for the motor-generator to generate a required electricity, an output torque calculating process (S6) of calculating an output torque (TE), a drive torque calculating process (S7) of calculating a drive torque, a throttle opening degree during power generation-calculating process (S8) of calculating a throttle opening degree-during power generation, and a speed control process (S9) of controlling the automatic transmission based on the throttle opening degree-during power generation.

Description

technical field [0001] The present invention generally relates to a shift control method and a shift control device for an automatic transmission. More particularly, the present invention relates to a shift control method and a shift control device for an automatic transmission provided in a drive train device of a hybrid vehicle having an engine and a motor-generator. Background technique [0002] For a hybrid vehicle having an engine and a motor-generator as drive sources, there are various drive train devices. For example, a known power train device is constructed such that the output shaft of the engine and the rotor of the motor-generator are interconnected via a clutch, and the rotor is directly connected to an automatic transmission, or the rotor is connected to an automatic transmission via a torque converter. , in order to establish a power transmission path to the drive wheels. In addition, the planetary gear device may be used in conjunction with an automatic tr...

Claims

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Application Information

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IPC IPC(8): F16H59/24B60W10/105B60W20/00B60L50/16
CPCY02T10/6286B60W10/06B60W2510/104B60K6/48B60W2710/083B60K2006/4825B60W20/102B60W2510/0604B60W2710/0666Y02T10/56B60W2710/0644B60W2710/1005B60W10/11Y02T10/6252B60W2510/0638B60W10/08Y02T10/6221B60W20/11Y02T10/40Y02T10/62
Inventor 石黑稔昌
Owner AISIN SEIKI KK
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