swiftでボタンが押されたら一番近い時刻を表示させるコードを書いたのですが、refleshcontrolがうまくいきません。

###前提・実現したいこと
ボタンを押すと時刻応じて一番近いバスの時刻が出るのですが、２枚目のviewcontroleerにrefleshcontrolを使って、更新させる仕様にしているのですが更新してもバスの時刻の結果が変わりません。

###該当のソースコード

swift
1//一つ目のviewcontroller
2class ViewController: UIViewController {
3    //画面から戻ってきたときの処理
4    @IBAction func backToTop(segue: UIStoryboardSegue) {
5    }
6    
7    //受け渡す際に使う配列の変数
8    var ukewatasu:String = ""
9    
10    //スクールバス四条畷行きの結果をJikokuViewControllerに渡す処理
11    //画面遷移時の処理
12    
13    
14    override func viewDidLoad() {
15        
16        super.viewDidLoad()
17        // Do any additional setup after loading the view, typically from a nib.
18    }
19    
20    override func didReceiveMemoryWarning() {
21        super.didReceiveMemoryWarning()
22        // Dispose of any resources that can be recreated.
23    }
24    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
25        if(segue.identifier == "gojikoku") {
26            let jvc: JikokuViewController = (segue.destination as? JikokuViewController)!
27           // ukewatasu = String(describing: result())
28            if ukewatasu == result() {
29                ukewatasu = result()
30            } else if ukewatasu == result2() {
31                ukewatasu = result2()
32            } else if ukewatasu == result3() {
33                ukewatasu = result3()
34            } else if ukewatasu == result4() {
35                ukewatasu = result4()
36            } else if ukewatasu == result5() {
37                ukewatasu = result5()
38            } else if ukewatasu == result6() {
39                ukewatasu = result6()
40            }
41            jvc.a = ukewatasu
42        }
43    }
44    
45    @IBAction func sbSijyou(_ sender: AnyObject) {
46        //result関数を受け取る
47        ukewatasu = result()
48        //performSegue(withIdentifier: "gojikoku",sender: nil)
49    }
50    @IBAction func sbNeyagawa(_ sender: AnyObject) {
51        ukewatasu = result2()
52        
53    }
54    @IBAction func kintetuSijyoudentu(_ sender: AnyObject) {
55        ukewatasu = result3()
56    }
57    
58    @IBAction func kintetuSijyou(_ sender: AnyObject) {
59       ukewatasu = result4()
60    }
61    
62    @IBAction func kintetuKiyotaki(_ sender: AnyObject) {
63       ukewatasu =  result5()
64    }
65    
66    
67    @IBAction func kintetuKiyotaki2(_ sender: AnyObject) {
68        ukewatasu = result6()
69    }
70    
71    //スクールバス四条畷
72    func result() -> String {
73        
74        let timeFormatter = DateFormatter()
75        timeFormatter.dateFormat = "HH:mm:ss"
76        let nowString = timeFormatter.string(from: NSDate() as Date)
77        let nowTime = timeFormatter.date(from: nowString)!
78        let jikokuArray: [(String, String)] = [("次のバス発車時刻 AM","9:10:00"),("次のバス発車時刻  AM","9:50:00"),("次のバス発車時刻 AM","10:10:00"),("次のバス発車時刻 AM","10:50:00"),("次のバス発車時刻 AM","11:10:00"),("次のバス発車時刻 AM","11:30:00"),("次のバス発車時刻 AM","11:50:00"),("次のバス発車時刻 PM","12:10:00"),("次のバス発車時刻 PM","12:50:00"),("次のバス発車時刻 PM","13:10:00"),("次のバス発車時刻 PM","14:10:00"),("次のバス発車時刻 PM","15:10:00"),("次のバス発車時刻 PM","15:20:00"),("次のバス発車時刻 PM","15:50:00"),("次のバス発車時刻 PM","16:05:00"),("次のバス発車時刻 PM","16:42:00"),("次のバス発車時刻 PM","16:50:00"),("次のバス発車時刻 PM","16:55:00"),("次のバス発車時刻 PM","17:00:00"),("次のバス発車時刻 PM","17:05:00"),("次のバス発車時刻 PM","17:50:00"),("次のバス発車時刻 PM","18:05:00"),("次のバス発車時刻 PM","18:35:00"),("次のバス発車時刻 PM","18:50:00"),("次のバス発車時刻 PM","19:05:00"),("次のバス発車時刻 PM","19:35:00"),("次のバス発車時刻 PM","19:50:00"),("次のバス発車時刻 PM","20:05:00"),("次のバス発車時刻 PM","20:35:00"),("次のバス発車時刻 PM","21:05:00") ]
79        
80        
81        let resultArray: [(String, String)] = jikokuArray.flatMap({
82            let diff = timeFormatter.date(from: $0.1)
83            return nowTime.timeIntervalSince(diff ?? nowTime) > 0 ? nil : $0
84        })
85        
86        if resultArray.count > 0, let result = resultArray.first {
87            return "\(result.0):\(result.1)"
88        } else {
89            return "本日のダイヤは終了しました。"
90        }
91    }
92}
93
94//2つ目のviewcontroller
95class JikokuViewController: UIViewController {
96    //60分の秒ごとにタイマーが更新されるプログラム
97    
98    var dateFormatter: DateFormatter{
99        let formatter = DateFormatter()
100        formatter.dateFormat = "yyyy/MM/dd HH:mm:ss"
101        return formatter
102    }
103    
104    //受け取る
105    var a:String = ""
106    
107     var refreshControl:UIRefreshControl!
108    
109    override func viewDidLoad() {
110        super.viewDidLoad()
111        
112        
113        self.refreshControl = UIRefreshControl()
114        self.refreshControl.attributedTitle = NSAttributedString(string: "引っ張って更新")
115        self.refreshControl.addTarget(self, action: "refresh", for: UIControlEvents.valueChanged)
116        self.tableView.addSubview(refreshControl)
117        
118        view.addSubview(timerLabel)
119        
120        // 初回
121        updateDateLabel()
122        
123        // 一定間隔で実行
124        Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(JikokuViewController.updateDateLabel), userInfo: nil, repeats: true)
125        
126        //labelに時刻を表示
127        jikokuLabel.text = a
128        
129        // Do any additional setup after loading the view.
130    }
131    
132    override func didReceiveMemoryWarning() {
133        super.didReceiveMemoryWarning()
134        // Dispose of any resources that can be recreated.
135    }
136    
137    // 日時表示ラベル更新メソッド
138    func updateDateLabel(){
139        let now = NSDate()
140        timerLabel.text = dateFormatter.string(from: now as Date)
141    }
142    
143    func refresh()
144    {
145        
146        ViewController()
147        JikokuViewController()
148        jikokuLabel.text = a
149        refreshControl.endRefreshing()
150    }
151    
152    @IBOutlet weak var jikokuLabel: UILabel!
153    @IBOutlet weak var timerLabel: UILabel!
154    @IBOutlet weak var tableView: UITableView!
155}