Vehicle yaw stability control method and apparatus

US9043107B2 · kind B2 · utility

Assignee

• VOLVO CAR CORPORATION · SE

Inventors

• Mohammad Ali · Partille, SE
• Mattias Bengtsson · Lindome, SE
• Per Landfors · Gothenburg, SE

Key dates

• Filing date: Mar 13, 2013
• Grant date: May 26, 2015
• Expiry date: Mar 13, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2220/03
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A vehicle yaw stability control method and a vehicle yaw stability control apparatus are provided. The yaw rate {dot over (ψ)} of the vehicle is measured. A first reference yaw rate {dot over (ψ)}ref is set. A difference yaw rate Δ{dot over (ψ)} is set. Stabilizing braking intervention is triggered when a value of the difference yaw rate Δ{dot over (ψ)} exceeds limits defined by difference yaw rate threshold values Δ{dot over (ψ)}min, Δ{dot over (ψ)}max. Information regarding the shape of the road ahead of the vehicle is acquired. The reliability of the driver steering input δ is evaluated upon stabilizing braking intervention being triggered. In case the driver steering input δ is deemed unreliable a replacement reference yaw rate {dot over (ψ)}refroad is set based on the acquired road shape and a replacement difference yaw rate Δ{dot over (ψ)}road is set whereupon stabilizing braking intervention is performed based on the replacement difference yaw rate Δ{dot over (ψ)}road.