Vehicle control device and vehicle control method

Abstract

The present invention provides a vehicle control device (10) comprising a balanced gradient calculating unit (122) and a travelling control unit (123). In a neutral coasting state, the balanced gradient calculating unit (122) connects an engine 1 and a gear and calculates a balanced gradient, which is a gradient in which a driving force of a vehicle (V) when the vehicle (V) travels in a gear-in coasting state, which is a state travelling without supplying fuel to the engine 1, and a resistance force applied to the vehicle (V) are balanced. When the travelling state of the vehicle (V) is the neutral coasting state, the travelling control unit (123) switches the travelling state of the vehicle (V) from the neutral coasting state to the gear-in coasting state on the basis of the calculated balanced gradient and a road gradient specified. After predetermined time has passed from switching of the travelling state of the vehicle (V) to the gear-in coasting state, the travelling control unit(123) determines whether or not a termination condition of the gear-in coasting state is filled, and terminates the gear-in coasting state if making determination that the termination conditions is filled.

Description

technical field [0001] The present disclosure relates to a vehicle control device and a vehicle control method. Background technique [0002] Conventionally, fuel economy has been improved by specifying a road gradient indicating the gradient of a road on which a vehicle is traveling, and controlling the traveling of the vehicle based on the road gradient. For example, Patent Document 1 discloses a control device that causes the vehicle to travel in a neutral coasting state that is a state in which the engine is not connected to the gears, based on the road gradient of the road on which the vehicle is traveling. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2016-182935 Contents of the invention [0006] The problem to be solved by the invention [0007] During coasting in neutral, the braking force of the vehicle is low. Therefore, on a downhill road, when the vehicle is traveling in a neutral coastin...

AI Technical Summary

Problems solved by technology

Therefore, on a downhill road, when the vehicle runs in a neutral coasting state, there is a problem t

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