Range extender assembly applied to hybrid mowing vehicle and control driving method

By applying a range extender assembly on a hybrid mower, dynamically adjusting the output of the engine and generator, the problems of poor adaptability and complex structure in the prior art are solved, and more efficient and flexible power management is achieved.

CN120140020APending Publication Date: 2025-06-13CHONGQING RUNTONG TECH CO LTD
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Patent Information

Application Number
CN202510411558.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The existing hybrid mower trucks have poor adaptability and complex structure, resulting in high fuel consumption, short battery life, high cost, and inability to effectively deal with complex working conditions with frequent power adjustments.

Method used

A range extender assembly applied to a hybrid mow truck is provided, including an engine system, a generator system and a range extender control unit. Through the range extender control unit, the output of the engine and generator is adjusted according to the required power and the target output power, so as to achieve dynamic adjustment of frequency and power.

Benefits of technology

It improves the adaptability and flexibility of the mowing truck, reduces structural complexity and cost, extends the equipment life, and can be better suited for complex working conditions.

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Abstract

The invention discloses a range extender assembly applied to a hybrid mowing vehicle and a control driving method, the range extender assembly is applied to the technical field of hybrid mowing vehicles, the range extender assembly comprises an engine system, a generator system and a range extender control unit, a rotor of the generator assembly is connected with a crankshaft of the engine assembly, a fan assembly is arranged on the air inlet side of the engine assembly, and the fan assembly is connected with the generator system. The fan assembly is connected to the crankshaft, the air outlet position of the fan assembly is aligned with a cylinder head of the engine assembly, and the range extender control unit is used for determining the target output power of the range extender assembly according to the corresponding relation between the required power and the target output power; selecting target mechanical power corresponding to the high efficiency point according to a preset target mechanical power curve corresponding to the target output power; and determining a target rotating speed and a target torque corresponding to the target mechanical power, and outputting power according to the target rotating speed and the target torque. The frequency can be adjusted according to different working conditions, adaptability and flexibility are good, the structure is simple, and cost is low.
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