STOP LAMP LIGHTING CONTROL DEVICE FOR ELECTRIC VEHICLE

摘要

A stop lamp lighting control device for an electric vehicle having an electric regenerative braking system, includes, a first calculation unit that converts a first deceleration threshold value to a first regenerative torque threshold value with a curb weight, a second calculation unit that converting a second deceleration threshold value to a second regenerative torque threshold value with a gross vehicle weight, a third calculation unit that calculates a third regenerative torque threshold value, and a determination unit that controls the stop lamp to be turned on when a regenerative torque value exceeds the first regenerative torque threshold value, the stop lamp to be turned off when the regenerative torque value is equal to or smaller than the second regenerative torque threshold value, and the stop lamp to be turned off when a given state continues.

主权项

1. A stop lamp lighting control device for an electric vehicle having an electric regenerative braking system, comprising:
a first calculation unit that converts a previously-defined first deceleration threshold value for turning-on a stop lamp to a first regenerative torque threshold value for turning-on the stop lamp at each vehicle speed by calculation assumed that a weight of the electric vehicle is a curb weight; a second calculation unit that converting a previously-defined second deceleration threshold value for turning-off the stop lamp to a second regenerative torque threshold value for turning-off the stop lamp at each vehicle speed by calculation assumed that the weight of the electric vehicle is a gross vehicle weight; a third calculation unit that calculates, based on the first regenerative torque threshold value and the second regenerative torque threshold value converted, a third regenerative torque threshold value for turning-off the stop lamp which is smaller than the first regenerative torque threshold value and larger than the second regenerative torque threshold value; and a determination unit that controls:
the stop lamp to be turned on when a regenerative torque value generated by the electric regenerative braking system during a regenerative braking exceeds the first regenerative torque threshold value corresponding to a vehicle speed at that time;the stop lamp to be turned off when the regenerative torque value is equal to or smaller than the second regenerative torque threshold value corresponding to a vehicle speed at that time; andthe stop lamp to be turned off when a state where the regenerative torque value is equal to or smaller than the third regenerative torque threshold value corresponding to a vehicle speed at that time continues to exceed a predetermined specific period of time.