Hill descent control
Hill descent control
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- Neue Suche nach: HOSE MARKUS
Vehicle control method having two clutches A, B (e.g. power shift / dual clutch) coupled to selectable gear ratios to transmit torque from an engine. A first gear ratio is selected and engaged via first clutch A to provide retardant torque / engine braking to vehicle wheels. A second gear ratio is pre selected via second clutch B, and subsequent engagement is modulated (clutch slipped) to provide further negative torque to the wheels. The selected gears may be forward (1st 6th) and reverse (RL, RH) ratios. Clutches A, B may be friction clutches. Method may be used when a vehicle is moving forwards or backwards down a slope / gradient. Initial gear selection may be changed during braking, i.e. from first forwards to first reverse, and second reverse to first forwards. Method steps may be prompted by transmission temperature threshold being reached to prevent clutch damage, or by performance threshold being reached to prevent clutch slip.
Dokumentinformationen
Hill descent control
2015-08-19
Patent
Elektronische Ressource
Englisch
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