Clutch control system with limp function and passenger car using clutch control system

Abstract

The invention relates to a clutch control system with a limp function and a passenger car using the clutch control system. According to the clutch control system, a two-way check valve is additionally arranged between a separation cavity solenoid valve and a clutch air cylinder, and the outlet of the two-way check valve is enabled to be communicated with a separation cavity of the clutch air cylinder; two inlets of the two-way check valve are respectively communicated with an air pocket pipeline through the separation cavity solenoid valve and a two-position three-way valve; when the clutch control system is used, a driver can enable the separation cavity of the clutch air cylinder to sequentially pass through the two-way check valve and the two-position three-way valve to be communicated with the air pocket by using a clutch pedal, so that the separation cavity of the clutch air cylinder is inflated to enable a clutch to be in the separation state; and the driver also can enable the separation cavity of the clutch air cylinder to sequentially pass through the two-way check valve and the two-position three-way valve to be communicated with the atmosphere by using the clutch pedal, so that air in the separation cavity of the clutch air cylinder can be emitted to the atmosphere, and the clutch is enabled to be in the combination state, and an engine inputs power to the whole passenger car.

Description

technical field [0001] The invention relates to the technical field of hybrid electric passenger cars, in particular to a clutch control system with a limp function, and also to a passenger car using the system. Background technique [0002] At present, hybrid electric buses have been widely used on the main bus routes of large and medium-sized cities. At low speeds, hybrid electric buses rely on electric motors to drive, and the engines start and output power only after the speed exceeds 20km / h. The combination and separation of the clutch is realized through the clutch cylinder. When the clutch needs to be separated, the normally closed solenoid valve is opened, the separation chamber of the clutch sub-pump is ventilated, the normally open solenoid valve is closed, the separation chamber of the clutch sub-pump is vented to the atmosphere, and the push rod of the sub-pump pushes When the clutch needs to be combined, the normally open solenoid valve is opened, the clutch sub...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a clutch control system with a limp function, aiming to solve the problem in the prior art that the hybrid electric passenger car cannot start when the vehicle speed is lower than 20km / h and the electric motor fails, and it also involves the use of the system bus

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