The invention provides a braking control method and device, equipment and a medium, and the method comprises the steps that the braking requirement levels in an engine cylinder are obtained, and different requirement levels correspond to different target braking powers; calculating the current braking power according to the current torque and the current rotating speed of the engine; if the current braking power is larger than or equal to the target braking power corresponding to the demand grade, the current gear of the gearbox is kept unchanged, and in-cylinder braking is started; and if the current braking power is smaller than the target braking power, engine output is adjusted according to a preset fixed braking torque, a target gear is determined according to the target braking power and the fixed braking torque, the gearbox is controlled to downshift to the target gear, and in-cylinder braking is started, so that the current braking power meets the target braking power corresponding to the demand level. According to the scheme, after the demand level of braking and the current braking power are considered, the gears of the gearbox are controlled to execute different in-cylinder braking schemes, so that in-cylinder braking of the engine is flexibly controlled.
本申请提供一种制动控制方法、装置、设备及介质,通过获取发动机缸内制动的需求等级,其中,不同的需求等级对应不同的目标制动功率;根据发动机的当前扭矩和当前转速计算当前制动功率;若当前制动功率大于或等于需求等级对应的目标制动功率,则保持当前的变速箱挡位不变,并开启缸内制动;若当前制动功率小于目标制动功率,则按照预设的固定制动扭矩,调节发动机输出,并根据目标制动功率和固定制动扭矩确定目标挡位,控制变速箱降挡至目标挡位并开启缸内制动,以使当前制动功率满足需求等级对应的目标制动功率。本方案考虑了制动的需求等级和当前的制动功率后,控制变速箱的挡位执行不同的缸内制动方案,以实现灵活地控制发动机的缸内制动。
Brake control method, device, equipment and medium
制动控制方法、装置、设备及介质
2024-02-06
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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