The invention relates to the technical field of fuel cells, in particular to a gear shifting control method without a P gear for a fuel cell hydrogen energy automobile, which mainly comprises the following steps that S1, a vehicle control unit performs self-checking operation on a power-on driving system of the whole automobile; S2, the vehicle control unit carries out energy system self-checking operation; S3, the vehicle control unit carries out high-voltage safety system self-checking operation; S4, the vehicle control unit obtains gear signal information, and if it is judged that the gear signal is normal, the operation of S5 is correspondingly executed; if it is judged that the gear signal is abnormal, the operation of S6 is correspondingly executed; S5, when it is judged that the gear signal is normal, the whole vehicle controller controls the logic gear of the whole vehicle to be switched among the N gear, the R gear and the D gear; and S6, when it is judged that the gear signal is abnormal, the vehicle control unit directly controls the logic gear of the whole vehicle to be switched to the N gear or controls the logic gear of the whole vehicle to be kept at the gear before the whole vehicle breaks down. According to the control method, compared with a gear shifting strategy of a traditional fuel vehicle, the gear shifting strategy is more reasonable and reliable, the covered working conditions of the whole vehicle are more complete, and the gear shifting rationality can be guaranteed to a great extent.

    本发明涉及燃料电池技术领域,尤其涉及一种燃料电池氢能汽车的不带P档换档控制方法,其主要包括以下步骤:S1、整车控制器进行整车的上电行驶系统自检操作;S2整车控制器进行能源系统自检操作;S3、整车控制器进行高压安全系统自检操作;S4整车控制器获取档位信号信息,若判断档位信号正常时,则对应的执行S5的操作;若判断档位信号不正常时,则对应的执行S6的操作;S5、当判断档位信号正常时,整车控制器控制整车的逻辑档位进行N档、R档和D档的切换;S6、当判断档位信号不正常时,整车控制器直接控制整车的逻辑档位切换至N档,或控制整车的逻辑档位保持为整车故障前的档位。本发明所述控制方法,较传统燃油车的换档策略更为合理和可靠,覆盖的整车工况更全,能够极大程度保证换档的合理性。


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    Titel :

    Gear shifting control method without P gear for fuel cell hydrogen energy automobile


    Weitere Titelangaben:

    一种燃料电池氢能汽车的不带P档换档控制方法


    Beteiligte:
    CHENG FEI (Autor:in) / HAO YIGUO (Autor:in)

    Erscheinungsdatum :

    30.04.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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