Hybrid vehicle having switch control function of travel mode based on map information

A hybrid electric vehicle having a switching control function of travel modes based on map information, that has an HV mode as a hybrid vehicle mode and an EV mode as an electric car mode, and that produces a predetermined travel plan to switch between the HV mode and the EV mode based on the map information, comprising:

• a control device configured to execute a switching control of modes of the HV mode and the EV mode based on the travel plan,
• wherein the travel plan is produced so that the EV mode is executed in a route element in which a travel efficiency is a predetermined value or higher, and so that the HV mode is executed in a route element in which the travel efficiency is less than the predetermined value, the travel efficiency being obtained when a vehicle travels in the EV mode in each route element of a travel route having a plurality of route elements, the travel efficiency becoming lower in a route element in which both of expected load and expected average vehicle speed are higher, and becoming higher in a route element in which both of the expected load and the expected average vehicle speed are lower,
• wherein the control device limits execution of the switching control of the HV and EV modes based on the travel plan when the hybrid electric vehicle is in a predetermined state in which an electric power that can be output from an electricity storage unit connected to a rotary electric machine driven during execution of the EV mode is limited,
• wherein the control device executes a control operation for at least one control of enlarging an amount of regenerative power generation that can be charged in the electricity storage unit by controlling regenerative power generation of the rotary electric machine by predicting or setting stopping and deceleration by a driver based on the map information, wherein the control operation includes at least one operation for, based on the map information and a detected vehicle speed, controlling to set a deceleration start position for increasing the amount of regenerative power generation, and a deceleration setting point which is passed after the deceleration start position based on the map information and a detected vehicle speed, upon detection of release of an acceleration pedal by the driver, generating a first regenerative torque in the rotary electric machine from the deceleration start position to the deceleration setting point to decelerate the vehicle, and generating a second regenerative torque greater than the first regenerative torque in the rotary electric machine after the deceleration setting point to increase a degree of deceleration, and changing a target value of a current charge capacity of the electricity storage unit based on the map information,
• wherein the control device determines whether or not to execute the switching control based on the travel plan by determining whether or not a quantity relating to the charge remaining amount, the temperature, or the electric power that can be output of the electricity storage unit, is greater than or equal to a first threshold, and
• wherein the control device determines whether or not to execute the control operation for enlarging the amount of regenerative power generation that can be charged in the electricity storage unit based on the map information and for changing the target value of the current charge capacity of the electricity storage unit based on the map information by determining whether or not the quantity is greater than or equal to a second threshold, wherein the first threshold and the second threshold differ from each other.