Stop control system for vehicle

A stop control system for a vehicle, for stopping an internal combustion engine installed on the vehicle having a brake system, when predetermined stop conditions are satisfied, restarting the engine when predetermined restart conditions are satisfied, and controlling a braking force of the vehicle such that the braking force is increased in order to supplement the braking force of the brake system during a stop of the vehicle, comprising:

• cranking means for cranking the engine using power supplied from a predetermined power source when the restart conditions are satisfied;
• a braking force-increasing device that is driven by power supplied from the power source, for increasing the braking force of the vehicle;
• braking force increasing necessity-determining means for determining whether or not the braking force of the vehicle needs to be increased by said braking force-increasing device during a stop of the vehicle;
• control means for controlling said braking force-increasing device according to a determination result by said braking force increasing necessity-determining means;
• and
• cranking time period-acquiring means for acquiring a time period of cranking performed by said cranking means,
• wherein in a case where it is determined that the braking force of the vehicle needs to be increased, said control means inhibits an operation of said braking force-increasing device until the acquired time period of cranking reaches a first predetermined time period, and when the time period of cranking reaches the first predetermined time period, causes said braking force-increasing device to operate while continuing the cranking.

A stop control system for a vehicle, for stopping an internal combustion engine installed on the vehicle having a brake system, when predetermined stop conditions are satisfied, restarting the engine when predetermined restart conditions are satisfied, and controlling a braking force of the vehicle such that the braking force is increased in order to supplement the braking force of the brake system during a stop of the vehicle, comprising:

• cranking means for cranking the engine using power supplied from a predetermined power source when the restart conditions are satisfied;
• a braking force-increasing device that is driven by power supplied from the power source, for increasing the braking force of the vehicle;
• braking force increasing necessity-determining means for determining whether or not the braking force of the vehicle needs to be increased by said braking force-increasing device during a stop of the vehicle;
• control means for controlling said braking force-increasing device according to a determination result by said braking force increasing necessity-determining means;
• and
• voltage acquisition means for acquiring a voltage of the power source, and
• wherein in a case where it is determined that the braking force of the vehicle needs to be increased, said control means inhibits an operation of said braking force-increasing device until the voltage of the power source acquired during the cranking becomes not lower than a predetermined voltage, and causes said braking force-increasing device to operate when the voltage of the power source becomes not lower than the predetermined voltage.