Vehicle mass calculation device

摘要: To calculate a vehicle mass based on driving force caused by an engine, running resistance, and acceleration, influence of gradient resistance is removed. A gross calculating section calculates F deducting from engine. An acceleration sensor longitudinal α the vehicle. Relationship among F, α, M, road Θ can be expressed as (α=F/M−g sin Θ). Because change contains only low frequency component, processing using high-pass filter with predetermined cut-off frequency, Based resultant processed obtained above expression without being affected