Help with Acceleration code

Questions & Answers
1

Hi there!
I am trying to make a car accelerate to a maxSpeed when pushing a button and deAccelerate when letting go of the button.
My code worked beofore i added the “MinusAcceleration” in the way that the car accelerated slowly, but as soon as i let go of the acceleration-button it instantly stopped (which i tried to fix with the MinusAcceleration function)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Acceleration : MonoBehaviour
{

    public float maxSpeed;
    private float accelerationPower;
    public float minSpeed;
    private float minusAccelerationPower;
    public float turnSpeed;
  

    private Rigidbody rb;

	// Use this for initialization
	void Start () {
	}
	
	// Update is called once per frame
	void Update ()
    {
        Forward();
        InvokeRepeating("Accelerating", 0f, 2f);
        InvokeRepeating("MinusAcceleration", 0f, 2f);
        Turning();
	}

    void Accelerating()
    {
        if (accelerationPower > maxSpeed)
        {
            accelerationPower += 0.05f;
        }
    }

    void MinusAcceleration()
    {
        if(minusAccelerationPower > minSpeed)
        {
            minusAccelerationPower -= 0.05f; 
        }
    }

    void Forward()
    {
        if(Input.GetKey(KeyCode.W))
        {
            transform.Translate(Vector3.forward * accelerationPower * Time.deltaTime);
        }
        else
        {
            transform.Translate(Vector3.forward * minusAccelerationPower * Time.deltaTime);
        }
    }

    void Turning()
    {
        transform.Rotate(0.0f, Input.GetAxis("Horizontal") * turnSpeed * Time.deltaTime, 0.0f);
    }
}

Can this be fixed with a rigidbody instead? Or how?
I appreaciate all the help i can get, Thanks in advance!

2

Have you tried setting minusAccelerationPower to a default value, because it starts out at 0.

3

I fixed it with this code! Thanks neverless.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Acceleration : MonoBehaviour
{

    public float maxSpeed;
    private float accelerationPower;
    private float minSpeed = 0;
    public float turnSpeed;
  

    private Rigidbody rb;

	// Use this for initialization
	void Start () {
	}
	
	// Update is called once per frame
	void Update ()
    {
        InvokeRepeating("Accelerating", 0f, 2f);
        Turning();
	}

    void Accelerating()
    {
        if (accelerationPower < maxSpeed && Input.GetKey(KeyCode.W)) 
        {
            transform.Translate(Vector3.forward * accelerationPower * Time.deltaTime);
            accelerationPower += 0.03f * Time.deltaTime;
        }
        else if (accelerationPower > minSpeed && !Input.GetKey(KeyCode.W))
        {
            transform.Translate(Vector3.forward * accelerationPower * Time.deltaTime);
            accelerationPower -= 0.02f * Time.deltaTime;
        }
    }

    void Turning()
    {
        transform.Rotate(0.0f, Input.GetAxis("Horizontal") * turnSpeed * Time.deltaTime, 0.0f);
    }
}