Controller for electric four-wheel-drive vehicle, electric driving system

Abstract

The invention relates to a controller for an electric four-wheel-drive vehicle, which can ensure smooth running performance of the vehicle, an electric driving system, and an electric four-wheel-drive vehicle using the controller (6). A first wheel (14R, 14L) is driven by an engine (1), a second wheel (15R, 15L) is driven by a motor (5), and a driving force of the engine (1) is transmitted to the first wheel (14R, 14L) through a manual transmission (12) and a clutch (18). When the clutch (18) is in a partially engaged state, a controller (4WDCU) (6) receives an input signal representing a degree of engagement of the clutch (18) and outputs a signal to control a driving force of the motor (5) in accordance with the input signal. When the vehicle starts running and no slips occurs in the wheels, the 4WDCU outputs the signal to gradually increase the driving force of the motor (5) as the engagement of the clutch (18) is progressed.

Description

technical field [0001] The present invention relates to a control device for an electric four-wheel drive vehicle, an electric drive system and an electric four-wheel drive vehicle, in particular to an electric four-wheel drive suitable for use in an electric four-wheel drive vehicle with a manual transmission and a clutch Vehicle controls, electric drive systems, and electric four-wheel drive vehicles. Background technique [0002] Recently, an electric four-wheel drive vehicle in which an engine drives the front or rear wheels and an electric motor drives the rear or front wheels has been put into practical use. Here, in an electric four-wheel drive vehicle using a manual transmission as a transmission, and a clutch is provided between the output shaft of the engine and the input shaft of the manual transmission, for example, as described in Japanese Patent Laid-Open No. 2004-254374, a clutch is disclosed. A technology that performs normal motor torque control when the cl...

AI Technical Summary

Problems solved by technology

[0004] However, in the technique described in Japanese Patent Laid-Open No. 2004-254374, only the motor torque control in the connection and disconnection states of the clutch is described, and when there is a vehicle start or a gear change, the clutch becomes half In the connected (half-clutch) state, the problem that the smooth driving of the vehicle cannot be ensured

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