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vehicle control device

A technology for control devices and vehicles, applied in the direction of control devices, electrical devices, power devices, etc.

Active Publication Date: 2021-10-29
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are cases where dynamic performance, vibration, noise, etc. are affected by the rotation characteristics of such a rotating member

Method used

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Examples

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Embodiment Construction

[0050] Internal combustion engine is a diesel engine or a gasoline engine that generates power through combustion of fuel, the rotational vibration generated by knocking, etc., there are cases where vibration due to the torsional resonance device and the like having a rotary member of the rigidity of the rotational vibration enlarged. As the motor, preferably, also it is used as the motor generator used in a generator. Input rotary member with respect to the rotational torque characteristics of the damping means, for example, absorbing rotational vibration of the engine, having a torsional rigidity of a predetermined power transmission shaft and the like. Damping device is configured to include, for example, an elastomeric spring and the friction mechanism, but may be provided only with an elastomer. A rotating member rotating with respect to the characteristics of the input torque, there is a change with respect to change of the input torque twist angle corresponding to the ratio...

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Abstract

The present invention is a control device for a vehicle capable of obtaining an engine rotation speed at which the vibration component of the resonance frequency determined by the torsional rigidity of the rotating member is appropriately reduced regardless of fluctuations in torsional rigidity due to individual differences in the rotating member, etc. Signal. By applying a torque (Tin) to the damper (rotating member) and measuring the torsion angle (Φ), the torsional rigidity (stiffness value (K1), etc.) is detected, and the actual resonance frequency (fr) is calculated. In addition, filtering is performed to attenuate the vibration component of the actual resonance frequency (fr) in the engine rotation speed signal (SNe) provided by the engine rotation speed sensor, and the engine rotation drive control and misfire are performed using the engine rotation speed signal (SNe) Judgment, abnormal sound judgment, etc. Since the vibration component of the engine rotational speed signal (SNe) is appropriately reduced based on the actual resonance frequency (fr) regardless of fluctuations in torsional rigidity caused by individual differences in damping devices, etc., it is possible to appropriately perform engine Control of the rotational speed signal (SNe).

Description

Technical field [0001] The present invention relates to a vehicle control device, in particular, to the improvement of various controls of vehicle control devices in consideration of rotational components such as the vibration damping device. Background technique [0002] A vehicle having an engine, an electric motor, a rotating member is known, the rotating member disposed between the engine and the motor, and has a rotational property associated with the input torque. The rotating member is, for example, a vibration damping device having a rotational vibration of the engine, has a predetermined rigid power transmission shaft, or the like, its rotational characteristics (torsional rigidity), hysteresis, gap size, etc., the rigidity value corresponds to input torque The change in the change in the change in the torsion angle, the lag is the difference in input torque when the torsion angle is increased, and the gap size is the change amount of the torsion angle when the input tor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/08B60W20/00B60W40/00
CPCB60W10/06B60W10/08B60W20/00B60W40/00G01M15/046G01M15/11B60W2030/206B60W2050/0057B60W2050/0052B60W20/17B60W2510/0638B60W2710/081B60Y2200/92B60L2270/145B60L2220/42B60L2220/46B60L50/16B60K6/445B60W20/15Y02T10/62Y02T10/64Y02T10/72Y02T10/7072B60W50/00G05D16/02
Inventor 菰田隆裕后藤田研二桑本祐纪
Owner TOYOTA JIDOSHA KK
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