An electronic control system for the chassis of a parallel oil-electric hybrid airport fire truck

Abstract

The present invention relates to the technical field of fire trucks, in particular to an electric control system for the chassis of a parallel oil-electric hybrid airport fire truck, including steps: S1: start the engine and drive the motor to drive the chassis; S2: drive the engine to drive the chassis, and drive the motor The clutch is disconnected from the transmission system of the chassis, and the water pump is driven by the power take-off, and the driving motor is electrically connected to the power battery, and enters step S3; S3: If the SOC of the power battery is greater than the upper limit threshold, the engine drives the chassis, and the generator assists the power battery Supply power to the drive motor; if the power battery SOC is less than the lower threshold, the engine drives the chassis, and the generator charges the power battery and supplies power to the drive motor; if the lower threshold < power battery SOC < the upper threshold, the engine drives the chassis, and the power battery assists The generator supplies power to the drive motor, and the invention solves the problem of poor starting and accelerating performance of the engine, ensures no engine exhaust emission when the car is in the garage, and reduces the overall cost.

Description

technical field [0001] The invention relates to the technical field of fire trucks, in particular to an electric control system for the chassis of a parallel oil-electric hybrid airport fire truck. Background technique [0002] The product is an airport fire truck chassis, which is used for airport fire rescue. At present, a typical airport fire truck chassis has one or two high-horsepower engines. If one engine is used, a power splitter needs to be installed. The engine can simultaneously drive the vehicle and the firefighter. Water pump; with two engines, one of the engines can be used as both a vehicle drive and a fire engine pump. [0003] The engine is limited by its own output characteristics, and its start-up acceleration performance is poor. For an engine drive scheme, the supplier of key assembly resources is relatively single, and the cost remains high, which is not conducive to the development of the industry. Engine emissions affect the environment, and start in ...

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Problems solved by technology

[0003] The engine is limited by its own output characteristics, and its start-up acceleration performance is poor. For an engine drive scheme, the supplier of key assembly resources is relatively single, and the cost remains high, which is not conducive to the development of the industry. Engine emissions affect the environment, and start in the parking garage. Exhaust gas needs to be specially treated, and the vehicle needs to drive to take power, and the vehicle can run at different speeds when the water pump is required to pump water at full power. This power take-off method is difficult to achieve, and it needs to rely on imported components

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