Mitigation of the effects of motor controller malfunctions for vehicles with an electrified powertrain

An electronic securement method for an electrified vehicle having an engine and a split power hybrid transmission including two electric motors, the electronic securement method comprising:

• providing a shifter device of the electrified vehicle, the shifter device being configured to control a park/reverse/neutral/drive (PRDN) state of the split power hybrid transmission;
• detecting, by a control system of the electrified vehicle, a neutral vehicle movement management (NVMM) state of the electrified vehicle where a PRND state of the split power hybrid transmission is neutral and that a speed of the electrified vehicle is less than a speed threshold indicative of a stopped vehicle;
• and
• in response to detecting the NVMM state:
• command a first electric motor of the split power hybrid transmission on via six switch open (6SO) operation;
• when the engine is on, command a second electric motor of the split power hybrid transmission to turn the engine off, where the second electric motor is configured for stop/start control of the engine;
• and
• after the engine is off, command the second electric motor off via 6SO operation.

The electronic securement method of claim 16, further comprising:

• determining, by the control system, whether the SOC of the high voltage battery system is less than the first SOC threshold;
• and
• when the SOC is less than the first SOC threshold:
• commanding, by the control system, the EPB to reengage;
• and
• outputting, N times by the control system, a customer instruction or message indicating that the high voltage battery system needs to be recharged by the engagement of the EPB, where N is an integer greater than zero.