Vehicle idling stop/start system and method without interruption of air conditioner

Abstract

The invention discloses a vehicle idle-speed stopping and starting system and a vehicle idle-speed stopping and starting method without interrupting the work of an air-conditioner. The system comprises an air-conditioner compressor, an engine, a clutch, a start / generator, an automatic transmission, an idle-speed stop controller, and a clutch and various sensors and various engine ECUs, which are connected with the idle-speed stop controller. The air-conditioner compressor is connected with a hydraulic pump / motor by the clutch, the hydraulic pump / motor is connected with a hydraulic power accumulator, and the clutches, the hydraulic pump / motor and the hydraulic power accumulator are electrically connected with the idle-speed stop controller. The idle-speed stop controller sends signals to the various engine ECUs to stop the engine and is then connected with one clutch after the clutch is separated under the control. With the connection of the hydraulic pump / motor with the air-conditioner compressor, the hydraulic power accumulator supplies hydraulic pressure to the hydraulic pump / motor to drive the air-conditioner compressor. The invention can also operate the air-conditioner during the idle-speed stop period and improves the economy of the fuel oil for the idle-speed stop period without influencing the riding comfort; the operation is easy; and idle-speed stop can also be executed on various automobiles.

Description

technical field [0001] The invention relates to an idling stop-start system and an idling stop-start method applied to urban vehicles, and is especially suitable for urban vehicles powered by ordinary non-hybrid internal combustion engines. Background technique [0002] In recent years, with the continuous reduction of oil resources, major automobile factories in the world have developed energy-saving and environment-friendly vehicles. China is a big oil consumer, and a large part of oil depends on imports. Therefore, the national government and automobile manufacturers are trying to find ways to reduce vehicle fuel consumption and exhaust emissions. Current idle stop-start systems are typically used on hybrid vehicles to save fuel by stopping unnecessary engine idling. For vehicles driving in the city, often stopped due to traffic lights and traffic jams, the fuel consumption can be reduced by installing an idle stop-start system so that the vehicle stops the engine at red...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the vehicle idle stop start systems stop the air conditioner during the idle stop period, which reduces the comfort in the vehicle; or does not allow the idle stop during the air conditioner operation process, which reduces the fuel economy of the car.

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