藍海華騰(300484.SZ):取得一項發明專利證書
格隆匯9月2日丨藍海華騰(300484.SZ)公佈,公司近日收到中華人民共和國國家知識產權局頒發的發明專利證書,發明名稱為一種車輛、車輛駐坡控制方法與系統。
該專利屬於車輛技術領域,提供了一種車輛、車輛駐坡控制方法與系統。通過扭矩估算器獲取電機的電磁轉矩,速度觀測器根據電磁轉矩和前一時刻的負載轉矩獲取電機的電機估算轉速,並反饋給負載觀測器,進而負載觀測器根據實際轉速和電機估算轉速獲取車輛當前時刻的負載轉矩,並將當前時刻的負載轉矩前饋至速度環電路,以便於速度環電路根據目標轉速、實際轉速以及當前時刻的負載轉矩對電機運行狀態進行控制,以此實現扭矩補償,進而減少比例積分的調節時間、減小駐坡的後溜距離,從而解決現有的車輛駐坡控制方法存在的因後溜距離和超調距離大,難以滿足駐坡需求的問題。
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