Method for sampling wheel acceleration and determining rotation angular position of wheel, and tire pressure monitoring system

A method for sampling wheel acceleration, comprising:

• acquiring, through a tire pressure monitoring device installed on a target wheel, a real-time wheel acceleration value of the target wheel and calculating a time length required to rotate for a preset number of revolutions of the target wheel according to a first association relationship between the wheel acceleration and the time length required to rotate for the preset number of revolutions of the target wheel;
• obtaining a time interval between any two adjacent sampling points according to the time length required to rotate for the preset number of revolutions;
• and
• sampling the wheel acceleration of the target wheel once at every time interval starting from any time,
• wherein the first association relationship is established by a means, which comprises:
• obtaining a plurality of relationship curves between wheel accelerations and wheel rotation frequencies of a plurality of wheels with different radiuses in a preset radius range;
• and
• performing segmental matching for the relationship curves, and obtaining the first association relationship between the wheel acceleration and the time length required to rotate for the preset number of revolutions, wherein the first association relationship is suited for any wheel with any radius in the preset radius range.