Driving force control apparatus of vehicle

• US 20070276549A1
• Filed: 05/22/2007
• Published: 11/29/2007
• Est. Priority Date: 05/23/2006
• Status: Active Grant

• Current Assignee: Subaru Corp.
• Original Assignee: Fuji Heavy Industries Limited (Subaru Corp.)
• Inventors: Hijikata, Kenji
• Granted Patent: US 9,120,487 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60W 2510/0676 Engine temperature
• CPC Class Codes: B60W 30/182 Selecting between different operative modes, e.g. comfort and performance modes

Abstract

In a driving force control apparatus of a vehicle of the present invention, a calculation portion of a meter_ECU outputs a mode selected by a mode selection switch or a temporary switch to a calculation portion as a request mode and has a multi-information display 12 display the mode selected by a driver. A calculation portion of an E/G_ECU outputs the request mode to a throttle control calculation portion and a transmission control calculation portion as a control mode for throttle opening-degree control and transmission control of a transmission with a driving force characteristic of the corresponding mode. A control mode arbitration calculation portion forcedly switches the control mode to a normal mode during warming-up driving or when a shift select lever is set to an R range. At this time, display of the request mode is not switched but the mode selected by the driver is displayed.

Claims

1. A driving force control apparatus of a vehicle comprising:

a memory unit configured to store a plurality of modes having different driving force characteristics;

a mode selection calculation portion which selects a single mode from the modes based on a request signal from an external operation unit and outputs the selected mode as a request mode;

a mode display calculation portion which sets mode information corresponding to the request mode and has a mode display unit display the information;

a control mode arbitration calculation portion which sets a mode corresponding to the request mode as a control mode, determines a mode limitation condition based on a driving condition parameter, and forcedly switches the control mode to a specific mode stored in the memory unit when the mode limitation condition is satisfied; and

a control calculation portion which calculates a driving force instruction value based on the driving force characteristic of the specific mode set at the mode arbitration calculation portion.

2. The driving force control apparatus of a vehicle according to claim 1, wherein

the driving condition parameter is an engine temperature, and the control mode arbitration calculation portion determines that the mode limitation condition is satisfied when the engine temperature is not higher than a warming-up determination temperature.

3. The driving force control apparatus of a vehicle according to claim 1, wherein

the driving condition parameter is a shift position, and the control mode arbitration calculation portion determines that the mode limitation condition is satisfied when the shift position is set to a reverse range.

4. The driving force control apparatus of a vehicle according to claim 1, wherein

the control mode stored in the memory unit has at least a first mode with a driving force characteristic suitable for normal driving and a second mode with a driving force characteristic with restricted power, and the specific mode also serves as the first mode.

5. The driving force control apparatus of a vehicle according to claim 1, wherein

the control mode stored in the memory unit has at least a first mode with a driving force characteristic suitable for normal driving and a third mode with a driving force characteristic with an emphasis on power, and the specific mode also serves as the first mode.