Equations
From Torque Wiki
⧼monobook-jumptonavigation⧽⧼monobook-jumptosearch⧽
The PID Editor contains a reasonably powerful equation editor that allows you to manipulate the incoming data from an OBD device, Sensor, or other data input to the app
Contents
- 1 Functions
- 1.1 EWMAF(weight:value)
- 1.2 TDLY(seconds:value)
- 1.3 RDLY(polls:value)
- 1.4 TOT(seconds:value)
- 1.5 TAVG(seconds:value)
- 1.6 RAVG(value)
- 1.7 AVG(bucketSize:value)
- 1.8 SIN(value), COS(value) ,TAN(value)
- 1.9 LOG(value)
- 1.10 LOG10(value)
- 1.11 LOG1P(value)
- 1.12 INT(value)
- 1.13 SQRT(value)
- 1.14 ABS(value)
- 1.15 SIGNED(value)
- 2 Functions that generate or retrieve data
Functions
The equation editor supports the following functions
EWMAF(weight:value)
- Exponentially weighted moving average filter - filter noisy signals here. 'weight' should be between 0(more smoothing) and 1(less smoothing)
TDLY(seconds:value)
- Time based delay - causes data to be delayed by 'seconds' amount before being returned. Returns 0 until data buffer is full
RDLY(polls:value)
- Read based delay - data is delayed by X polling loops before being returned
TOT(seconds:value)
- Totalizer function based upon difference from time/value
TAVG(seconds:value)
- Timed average. This averages the incoming data for the configured amount of time (in seconds). Data older than the configured time is removed from being averaged
RAVG(value)
- Rolling average. This averages incoming values until it is reset. No values are removed from the average until it is reset.
AVG(bucketSize:value)
- Point average. This averages incoming values from a bucket of s set size. The bucket can be configured to average a set amount of values, so AVG(10,value) would average the last 10 values
SIN(value), COS(value) ,TAN(value)
- Trigonometric functions are supported
LOG(value)
- Returns the natural logarithm (base e) of a value
LOG10(value)
- Returns the base 10 logarithm of a value
LOG1P(value)
- Returns the natural logarithm of the sum of the value and 1
INT(value)
- Converts the incoming number to an integer
SQRT(value)
- Returns the correctly rounded positive square root of a value.
ABS(value)
- Returns the absolute value of the number given
SIGNED(value)
- Treats the incoming value as 8bit signed
Functions that generate or retrieve data
RANDOM()
- Returns a random number between 0 and 1
BARO()
- Returns the barometric pressure from the android device or measured from the vehicle ECU if it supports it in psi