Drive force control device
US6328671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | May 17, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/945
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a hybrid vehicle wherein the rotation torques of a motor and engine are input to a continuously variable transmission, a drive force is controlled by a microprocessor programmed to set a target drive power (t.sub.PO) based on a depression amount of an accelerator pedal (APO) and a vehicle speed (VSP), set a battery power (PB) based on a battery charge amount (SOC), set a target engine power (t.sub.PE) based on the target drive power (t.sub.PO) and the battery power (PB). The microprocessor is also programmed to set a limited target engine power (t.sub.PELMT) to zero when the target engine power (t.sub.PE) is less than a predetermined value, and set the limited target engine power (t.sub.PELMT) equal to the target engine power (t.sub.PE) when the target engine power (t.sub.PE) is larger than the predetermined value. The microprocessor is further programmed to set a target engine torque (t.sub.TE) and a target engine rotation speed (t.sub.NE) based on the limited target engine power (t.sub.PELMT), set the target motor/generator torque (t.sub.TMG) based on a target motor/generator power (t.sub.PMG) and the input rotation speed (NI), and set the target speed ratio (t.sub.RVO) based …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.