Cron job doesn't work Magento2

Question

I created a module and want to use it through cron, and in the end I call the cron: run command, here are my files, what is wrong here?

namespace AutoAddtocart\BundleAddtocart\Cron;

class Addtocartauto
{

    protected $_logger;

    public function __construct(

        \Psr\Log\LoggerInterface $logger
    )
    {

        $this->_logger = $logger;
    }

    public function execute()
    {
        $this->_logger->debug('Cron run successfully');
        return $this;
    }

}

Cron xml file

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd">
    <group id="default">
        <job instance="AutoAddtocart\BundleAddtocart\Cron\Addtocartauto" method="execute"  name="add_to_cart_by_cron">
            <schedule>* * * * *</schedule>
        </job>
    </group>
</config>