Control Pilot Control

CpPwmRequest

Topic: josev/cs. Used to interface with the PWM module for the Control Pilot (CP)
type	object
properties
id	type	string
	format	uuid
name	const	cp_pwm
type	const	request
data	type	object
	default
	properties
	evse_id	type	string
	hlc	type	boolean
	current	type	number
		minimum	0
	error_state	type	boolean
	fault_state	type	boolean

Example:

{
  "id": "79ac862e-d0a7-4eef-98b5-c827be3bd669",
  "name": "cp_pwm",
  "type": "request",
  "data": {
      "evse_id": "DE*SEV*E123456789",
      "hlc": true, # false
      "current": 10.5, # optional field; 1 decimal point float; 0A means 100% duty cycle, EVSE not ready/ pwm off
      "error_state": false, # true; true means 0% duty cycle and 0V (state E)
      "fault_state": false, # true; true means 0% duty cycle and -12V (state F)
  }
}

---

CpPwmResponse

Topic: cs/josev. Used to interface with the PWM module for the Control Pilot (CP)
type	object
properties
id	type	string
	format	uuid
name	const	cp_pwm
type	const	response
data	type	object
	default
	properties
	evse_id	type	string
	status	enum	valid, invalid, error
	info	type	string

Example:

{
  "id": "79ac862e-d0a7-4eef-98b5-c827be3bd669",
  "name": "cp_pwm",
  "type": "response",
  "data": {
      "evse_id": "DE*SEV*E123456789",
      "status": "valid", # invalid, error
      "info": None, # optional field. in case of error or invalid, an info can be propagated
  }
}

---

General requirements for PWM Requests

hlc - If true, sets the duty cycle to 5%, to signal digital communication; If false indicates that basic charging is intended

current - If hlc is false and current is between [6, 80] A, the duty cycle must be set accordingly for basic charging. This field is mandatory if hlc is false, and must be unset if it is true. If hlc is false and current is set to 0A, the duty cycle is set to 100%.

error_state - If true signals a request to force state E in the CP line.

fault_state - If true signals a request to force state F in the CP line

• hlc = true => 5% is triggered at the beginning of the SLAC application

• hlc = true is triggered also after iso15118 sends PowerDeliverRes with Status = “OK”, hlc

• fault_state = true signals a state F and it overrules the other fields values, i.e., if fault_state = true, then all other fields must be ignored (except on invalid cases)

• error_state = true signals a state E and it overrules the other fields values, i.e., if error_state = true, then all other fields must be ignored (except on invalid cases)

• if hlc = true, current must not be set (current = None)

• if hlc = false, current must be set

Invalid cases

• hlc = false and current is non-zero and outside of the range [6, 80] (according to 61851-1)

• hlc = true and current = any value, is invalid: one sets 5% and the other 100% or nominal duty cycle

• error_state = true and fault_state = true