openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#include "opendbc/safety/safety_declarations.h"
bool get_longitudinal_allowed(void) {
return controls_allowed && !gas_pressed_prev;
}
// Safety checks for longitudinal actuation
bool longitudinal_accel_checks(int desired_accel, const LongitudinalLimits limits) {
bool accel_valid = get_longitudinal_allowed() && !max_limit_check(desired_accel, limits.max_accel, limits.min_accel);
bool accel_inactive = desired_accel == limits.inactive_accel;
return !(accel_valid || accel_inactive);
}
bool longitudinal_speed_checks(int desired_speed, const LongitudinalLimits limits) {
return !get_longitudinal_allowed() && (desired_speed != limits.inactive_speed);
}
bool longitudinal_transmission_rpm_checks(int desired_transmission_rpm, const LongitudinalLimits limits) {
bool transmission_rpm_valid = get_longitudinal_allowed() && !max_limit_check(desired_transmission_rpm, limits.max_transmission_rpm, limits.min_transmission_rpm);
bool transmission_rpm_inactive = desired_transmission_rpm == limits.inactive_transmission_rpm;
return !(transmission_rpm_valid || transmission_rpm_inactive);
}
bool longitudinal_gas_checks(int desired_gas, const LongitudinalLimits limits) {
bool gas_valid = get_longitudinal_allowed() && !max_limit_check(desired_gas, limits.max_gas, limits.min_gas);
bool gas_inactive = desired_gas == limits.inactive_gas;
return !(gas_valid || gas_inactive);
}
bool longitudinal_brake_checks(int desired_brake, const LongitudinalLimits limits) {
bool violation = false;
violation |= !get_longitudinal_allowed() && (desired_brake != 0);
violation |= desired_brake > limits.max_brake;
return violation;
}