The invention discloses a sliding energy recovery strategy and system for a new energy automobile, and the strategy comprises the steps: receiving a first drive motor output torque, a first response negative torque, a first drive motor rotating speed and a first automobile speed of the automobile in a unit time period, calculating a first comprehensive sliding resistance moment, a first torque difference, a first rotating speed difference and a first slope; according to the first torque difference, the first rotating speed difference, the first slope and the first vehicle speed, a sliding energy recovery Map is inquired, and a first sliding energy recovery torque is obtained; the first sliding energy recovery torque serves as final sliding energy recovery torque; wherein under the same vehicle speed, the sliding deceleration corresponding to different loads of the vehicle tends to be consistent. The sliding energy recovery torque is determined according to the load and the vehicle speed of the vehicle, and the sliding deceleration tends to be consistent under different loads and the same vehicle speed of the vehicle, so that the sliding deceleration fluctuation feeling of a user is reduced, the driving is smoother, and the driving experience is improved.
本申请公开了一种新能源汽车的滑行能量回收策略及系统,策略包括:接收车辆在单位时间周期内的第一驱动电机输出扭矩、第一响应负扭矩、第一驱动电机转速和第一车速,并计算第一综合滑行阻力矩、第一扭矩差、第一转速差以及第一斜率;依据第一扭矩差、第一转速差、第一斜率以及第一车速查询滑行能量回收Map,获得第一滑行能量回收扭矩;将第一滑行能量回收扭矩作为最终滑行能量回收扭矩;其中,在相同车速下,车辆的不同载荷对应的滑行减速度趋于一致。本申请依据车辆的载荷和车速确定滑行能量回收扭矩,并且在车辆的不同载荷下,相同车速下的滑行减速度趋于一致,使得用户减少滑行减速度波动感受,让驾驶更为平顺,改善驾驶体验。
Sliding energy recovery strategy and system of new energy automobile
一种新能源汽车的滑行能量回收策略及系统
2024-11-29
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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