External vehicle tire pressure signaling

A vehicle comprising:

• a passenger compartment;
• a drive system configured to motivate, accelerate, decelerate, stop, and steer the vehicle;
• and
• an external tire pressure indicator including:
• a target pressure specifier configured to specify a target pressure for a tire of the vehicle and generate a target pressure signal indicative of the target pressure;
• a pressure monitor configured to receive the target pressure signal, a current pressure signal indicative of a current pressure of the tire, and an indicator of a deliberate change in the current pressure of the tire, the pressure monitor being further configured to compare the current pressure signal with the target pressure signal responsive to the indicator and generate a status signal indicative of a status of the current pressure signal relative to the target pressure signal;
• and
• an audio generator positioned on the vehicle, wherein the audio generator is configured to receive the status signal and to generate a sound audible outside of the passenger compartment of the vehicle that is indicative of the status signal;
• wherein the indicator of the deliberate change in the current pressure of the tire includes an indicator received from a valve sensor configured to detect application of a pressure change device to a valve of the tire.

A method comprising:

• receiving a target pressure signal indicative of a target pressure for a tire of a vehicle;
• receiving a current pressure signal indicative of a current pressure of the tire;
• receiving an indication of a deliberate change in the current pressure of the tire, wherein the indicator of the deliberate change in the current pressure of the tire includes an indicator received from a valve sensor configured to detect application of a pressure change device to a valve of the tire;
• comparing the target pressure signal with the current pressure signal responsive to the indicator;
• generating a status signal indicative of a status of the current pressure signal relative to the target pressure signal;
• and
• providing the status signal to an audio generator positioned on the vehicle, wherein the audio generator is configured to receive the status signal and to generate a sound audible outside of a passenger compartment of the vehicle that is indicative of the status signal.