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Active speed regulation gear shifting mechanism and method for automobile power system

A technology of power system and shifting mechanism, applied in the field of shifting control of automobile power system, can solve the problems affecting the reliability of synchronizer gearbox, difficult adjustment, large impact force, etc., so as to improve the smoothness of shifting, reduce costs, The effect of reducing the impact

Pending Publication Date: 2022-06-24
江苏新能源汽车研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the gear shifting of the synchronizer is simple and low in cost, the internal impact force is large and the adjustment is difficult, which seriously affects the reliability of the synchronizer and the gearbox

Method used

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  • Active speed regulation gear shifting mechanism and method for automobile power system
  • Active speed regulation gear shifting mechanism and method for automobile power system
  • Active speed regulation gear shifting mechanism and method for automobile power system

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0035] like figure 1 , 2 As shown in the figure, an active speed regulating and shifting mechanism of an automobile power system includes a controller 1, an actuator, an active speed regulating mechanism, and an action mechanism,

[0036] The controller 1 collects vehicle and road information, predicts the driver's intention to shift gears, judges the need for shifting gears, and adjusts the speed or torque of the motor.

[0037] The actuator includes a drive motor 2, a lead screw 3, a first shift hub 5, a nut seat 4, and a shift fork 11. The drive motor 2 provides the lead screw 3 with rotational speed or torque, and the nut seat 4 is detachably installed inside There is a fi...

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Abstract

The invention discloses an active speed regulation gear shifting mechanism and method of an automobile power system. The gear shifting mechanism comprises a controller, an executing mechanism, an active speed regulation mechanism and an action mechanism, and the executing mechanism comprises a driving motor, a lead screw, a first gear shifting hub, a nut seat and a shifting fork. The active speed regulating mechanism comprises a driving motor, a lead screw, a second gear shifting hub, a bearing, a belt wheel and a transmission belt, the bearing is installed in the center of one side of the belt wheel, and the other side of the belt wheel can be connected with or disconnected from the second gear shifting hub; the belt wheel and the combination teeth are in transmission through a transmission belt. The lead screw can drive the second gear shifting hub to move front and back. The actuating mechanism comprises a gear sleeve, a gear hub, a synchronous ring and a combination tooth, the gear hub is installed on the inner side of the gear sleeve, and the synchronous ring is located between the gear sleeve and the combination tooth. Through an active speed regulation control strategy, the cost is reduced, meanwhile, the gear shifting smoothness of the synchronizer is improved, the influence of gear shifting impact force on the synchronizer is reduced, and the reliability and the service life of the synchronizer are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of gear shifting control of an automobile power system, and in particular relates to an active speed regulation synchronous gear shifting system and a gear shifting method in a clutchless shifting process of an automobile. Background technique [0002] In a hybrid vehicle that uses a clutch to shift gears, at low speed, the clutch separates the engine and the motor drives the vehicle; at high speed, the clutch couples the engine and the motor, and the engine relies on the friction force of the clutch to match the speed of the vehicle. Shift. This process not only increases the shifting time and makes the power interruption time long; but also the hydraulic control system of the clutch has reliability problems such as sealing, and the cost is relatively high. [0003] At present, the synchronizer structure is an indispensable and important part in the field of fuel vehicles, hybrid vehicles and pure electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H63/32
CPCF16H61/0403F16H63/32
Inventor 刘行邹大庆王辉左佳莉汤勇沈无惧石放辉
Owner 江苏新能源汽车研究院有限公司
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